1 | ! ftp://ftp.numerical.rl.ac.uk/pub/MandR/convert.f90 |
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2 | ! |
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3 | ! Copyright CERN, Geneva 1991, 1997 - Copyright and any other |
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4 | ! appropriate legal protection of these computer programs |
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5 | ! and associated documentation reserved in all countries |
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6 | ! of the world. |
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7 | ! Author: Michael Metcalf (MichaelMetcalf@compuserve.com) |
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8 | ! |
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9 | ! Requires the option -qcharlen=14400 with IBM's xlf. |
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10 | ! |
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11 | ! Version 1.5. Differs from previous versions in that: |
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12 | ! (19/12/96) |
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13 | ! Code modified to be Fortran 95 and ELF |
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14 | ! compatible (no functional changes). |
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15 | ! |
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16 | !*********************************************************************** |
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17 | ! * |
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18 | ! * |
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19 | ! A program to convert FORTRAN 77 source form to Fortran 90 source * |
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20 | ! form. It also formats the code by indenting the bodies of DO-loops * |
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21 | ! and IF-blocks by ISHIFT columns. Statement keywords are * |
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22 | ! followed if necessary by a blank, and blanks within tokens are * |
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23 | ! are suppressed; this handling of blanks is optional. * |
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24 | ! If a CONTINUE statement terminates a single DO loop, it is * |
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25 | ! replaced by END DO. * |
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26 | ! Procedure END statements have the procedure name added, if * |
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27 | ! blanks are handled. * |
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28 | ! Statements like INTEGER*2 are converted to INTEGER(2), if blanks * |
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29 | ! are handled. Depending on the target processor, a further global * |
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30 | ! edit might be required (e.g. where 2 bytes correspond to KIND=1). * |
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31 | ! Typed functions and assumed-length character specifications are * |
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32 | ! treated similarly. The length specification *4 is removed for all * |
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33 | ! data types except CHARACTER, as is *8 for COMPLEX. This * |
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34 | ! treatment of non-standard type declarations includes any * |
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35 | ! non-standard IMPLICIT statements. * |
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36 | ! Optionally, interface blocks only may be produced; this requires * |
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37 | ! blanks processing to be requested. The interface blocks are * |
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38 | ! compatible with both the old and new source forms. * |
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39 | ! * |
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40 | ! Usage: the program reads one data record in free format from the * |
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41 | ! default input unit. This contains: * |
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42 | ! * |
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43 | ! name of file * |
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44 | ! indentation depth * |
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45 | ! maximum indentation level * |
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46 | ! whether significant blanks should be handled * |
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47 | ! whether interface blocks only are required * |
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48 | ! * |
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49 | ! The default values in the absence of this record are: * |
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50 | ! name 3 10 T F * |
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51 | ! To do nothing but change the source form of a file prog.f type * |
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52 | ! prog 0 0 F F * |
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53 | ! or simply * |
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54 | ! prog / * |
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55 | ! For more extensive processing type, say, * |
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56 | ! prog 3 10 t f * |
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57 | ! and for interface blocks only type * |
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58 | ! prog 0 0 t t * |
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59 | ! The input is read from prog.f, the output is written to prog.f90; * |
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60 | ! there should be no tabs in the input. * |
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61 | ! * |
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62 | ! Restrictions: The program does not indent FORMAT statements or * |
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63 | ! any statement containing a character string with an * |
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64 | ! embedded multiple blank. * |
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65 | ! The order of comment lines and Fortran statements * |
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66 | ! is slightly modified if there are sequences of * |
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67 | ! more than KKLIM (=200) comment lines. * |
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68 | ! If there are syntax errors, continued lines do not * |
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69 | ! have a trailing &. * |
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70 | ! When producing interface blocks, a check is required* |
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71 | ! that any dummy argument that is a procedure has a * |
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72 | ! corresponding EXTERNAL statement. Also, since no * |
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73 | ! COMMON blocks or PARAMETER statements are copied, * |
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74 | ! part of an assumed-size array declaration may be * |
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75 | ! missing. Similarly, parts of an assumed-length * |
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76 | ! character symbolic constant might be copied and have * |
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77 | ! to be deleted. BLOCK DATA statements are copied and * |
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78 | ! must be deleted. These problems would normally be * |
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79 | ! detected by a compiler and are trivially corrected. * |
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80 | ! Within a given keyword, the case must be all upper * |
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81 | ! or all lower, and lower case programs require * |
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82 | ! blank handling for correct indenting. * |
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83 | ! * |
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84 | !*********************************************************************** |
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85 | ! |
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86 | MODULE STRUCTURE |
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87 | ! |
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88 | !*********************************************************************** |
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89 | ! Define maximum level of DO-loop nesting, and maximum length of * |
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90 | ! a Fortran statement. LEN may be reduced for * |
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91 | ! compilers accepting a maximum character * |
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92 | ! length below 2640 and this will cause any excess * |
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93 | ! continuation lines and all following lines to be copied unchanged. * |
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94 | ! KKLIM defines the length of the comment line buffer. If this * |
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95 | ! length is exceeded, the statement preceding the comments will * |
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96 | ! appear after them. * |
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97 | !*********************************************************************** |
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98 | implicit none |
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99 | public |
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100 | INTEGER, PARAMETER :: NEST = 32 , LEN = 2640 , KKLIM = 200, & |
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101 | KLEN = 72*KKLIM |
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102 | ! |
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103 | INTEGER :: KNTDO , KNTIF , KNTCOM , LABEL , LENST , LABLNO, NOARG |
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104 | INTEGER, DIMENSION(NEST) :: LABLDO |
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105 | ! |
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106 | LOGICAL :: SYNERR, BLNKFL, INTFL |
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107 | ! |
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108 | CHARACTER(LEN=LEN) :: STAMNT |
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109 | CHARACTER(LEN=KLEN):: CBUF |
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110 | CHARACTER(LEN=42) :: NAME |
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111 | ! |
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112 | END MODULE STRUCTURE |
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113 | MODULE DATA |
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114 | implicit none |
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115 | public |
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116 | ! |
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117 | INTEGER, SAVE :: ISHIFT , MXDPTH , NIN , NOUT, TIME0 |
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118 | LOGICAL, SAVE :: BLANKS, INTBFL |
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119 | ! |
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120 | END MODULE DATA |
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121 | MODULE STATISTICS |
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122 | implicit none |
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123 | public |
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124 | ! |
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125 | INTEGER, SAVE :: MXDO , MXIF , KARD , KNTPU |
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126 | ! |
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127 | LOGICAL, SAVE :: SYNTAX, OVFLW, NONSTD |
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128 | ! |
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129 | END MODULE STATISTICS |
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130 | MODULE ALL_PROCEDURES |
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131 | private |
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132 | public :: start, program_units, terminate |
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133 | CONTAINS |
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134 | !*********************************************************************** |
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135 | SUBROUTINE ARGUMENT(ARGNAM, LENARG, STAMNT, LENST, NOARG) |
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136 | implicit none |
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137 | ! |
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138 | ! To store the argument names and function name, if any, for later |
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139 | ! use in checking whether a specification statement is relevant to an |
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140 | ! interface block. |
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141 | CHARACTER(LEN=*), INTENT(IN OUT), dimension(:) :: ARGNAM |
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142 | CHARACTER(LEN=*), INTENT(IN) :: STAMNT |
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143 | INTEGER, INTENT(OUT), dimension(:) :: LENARG |
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144 | INTEGER, INTENT(IN OUT) :: NOARG |
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145 | INTEGER, INTENT(IN) :: LENST |
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146 | ! |
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147 | integer :: ind1, ind2, newind |
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148 | ! |
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149 | ! Correct length of function name |
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150 | IF (NOARG == 1) LENARG(1) = LEN_TRIM(ARGNAM(1)) |
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151 | ! |
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152 | ! Get any other arguments |
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153 | IND1 = index(STAMNT(:LENST), '(') + 1 |
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154 | IF (IND1 /= 1 .AND. STAMNT(IND1:IND1) /= ')') THEN |
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155 | NEWIND = index(STAMNT(IND1+1:LENST), '(') |
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156 | IF (NEWIND /= 0) IND1 = NEWIND + 1 + IND1 |
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157 | 3 IND2 = index(STAMNT(IND1:LENST), ',') - 1 |
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158 | IF (IND2 == -1) IND2 = index(STAMNT(IND1:LENST), ')') - 1 |
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159 | IND2 = IND2 + IND1 - 1 |
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160 | IF (STAMNT(IND1+1:IND1+1) /= '*' ) THEN |
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161 | NOARG = NOARG +1 |
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162 | ARGNAM(NOARG) = STAMNT(IND1:IND2) |
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163 | LENARG(NOARG) = IND2 - IND1 +1 |
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164 | END IF |
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165 | IF (STAMNT(IND2+1:IND2+1) == ')') GO TO 4 |
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166 | IND1 = IND2 + 3 |
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167 | GO TO 3 |
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168 | END IF |
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169 | 4 LENARG(:NOARG) = MIN(LENARG(:NOARG), 6) |
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170 | ! |
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171 | RETURN |
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172 | END SUBROUTINE ARGUMENT |
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173 | SUBROUTINE BLANK( ) |
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174 | ! |
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175 | ! To suppress all blanks in the statement, and then to place |
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176 | ! a blank on each side of =, +, -, * and / (but not ** or //), a |
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177 | ! blank after each ) and , and a blank before each (. |
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178 | ! No changes are made within character strings or FORMAT statememts. |
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179 | ! |
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180 | USE DATA |
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181 | ! |
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182 | USE STATISTICS |
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183 | ! |
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184 | USE STRUCTURE |
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185 | implicit none |
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186 | ! |
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187 | CHARACTER(LEN=LEN) :: BUFFER |
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188 | integer :: l1, l2, lchar, napost, lenold |
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189 | ! |
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190 | ! Reduce length to that of significant characters |
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191 | BLNKFL = .FALSE. |
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192 | LENST = LEN_TRIM(STAMNT(1:LENST)) |
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193 | IF (.NOT.BLANKS) THEN |
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194 | IF (LEN-LENST >= 2) STAMNT(LENST+1:LENST+2) = ' ' |
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195 | LENST = MIN(LENST+2, LEN) |
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196 | GO TO 99 |
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197 | END IF |
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198 | BLNKFL = .TRUE. |
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199 | ! |
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200 | ! Suppress blanks (add 2 to catch |
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201 | ! odd number of apostrophes on a line in REFORM). |
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202 | LCHAR = 0 |
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203 | NAPOST = 0 |
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204 | DO L1 = 1, LENST |
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205 | IF (STAMNT(L1:L1) == "'") NAPOST = 1-NAPOST |
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206 | IF (NAPOST == 0 .AND. STAMNT(L1:L1) == ' ') CYCLE |
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207 | LCHAR = LCHAR+1 |
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208 | BUFFER(LCHAR:LCHAR) = STAMNT(L1:L1) |
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209 | END DO |
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210 | IF (LEN-LCHAR >= 2) BUFFER(LCHAR+1:LCHAR+2) = ' ' |
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211 | LCHAR = MIN(LCHAR+2, LEN) |
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212 | ! |
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213 | ! Eliminate FORMATS |
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214 | IF( LABEL /= 0 .AND. & |
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215 | & LCHAR >= 11 .AND.(BUFFER(:7) == 'FORMAT(' .OR. & |
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216 | & BUFFER(:7) == 'format(') .AND. & |
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217 | & BUFFER(LCHAR-2:LCHAR-2) == ')') THEN |
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218 | IF (LEN-LENST >= 2) STAMNT(LENST+1:LENST+2) = ' ' |
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219 | LENST = MIN(LENST+2, LEN) |
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220 | GO TO 99 |
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221 | END IF |
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222 | ! |
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223 | ! Insert blanks |
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224 | LENOLD = LENST |
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225 | LENST = 0 |
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226 | NAPOST = 0 |
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227 | DO L2 = 1, LCHAR |
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228 | ! |
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229 | ! Check size of statement |
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230 | IF(LENST+3 > LEN) THEN |
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231 | LENST = LCHAR |
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232 | STAMNT(:LENST) = BUFFER(:LENST) |
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233 | OVFLW = .TRUE. |
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234 | GO TO 99 |
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235 | END IF |
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236 | ! |
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237 | ! Whether inside character string |
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238 | IF (BUFFER(L2:L2) == "'") NAPOST = 1-NAPOST |
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239 | IF (NAPOST == 1) GO TO 3 |
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240 | ! |
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241 | ! Add blank padding according to character |
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242 | SELECT CASE (BUFFER(L2:L2)) |
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243 | CASE ( ')' ) |
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244 | STAMNT(LENST+1:LENST+2) = ') ' |
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245 | LENST = LENST+2 |
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246 | CASE ( '(' ) |
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247 | STAMNT(LENST+1:LENST+2) = ' (' |
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248 | LENST = LENST + 2 |
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249 | CASE ( ',' ) |
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250 | STAMNT(LENST+1:LENST+2) = ', ' |
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251 | LENST = LENST + 2 |
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252 | CASE ( '=' ) |
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253 | STAMNT(LENST+1:LENST+3) = ' = ' |
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254 | LENST = LENST + 3 |
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255 | CASE ( '*' ) |
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256 | IF (BUFFER(L2-1:L2-1) /= '*' .AND. BUFFER(L2+1:L2+1) & |
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257 | /= '*') THEN |
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258 | STAMNT(LENST+1:LENST+3) = ' * ' |
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259 | LENST = LENST + 3 |
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260 | ELSE |
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261 | GO TO 3 |
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262 | END IF |
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263 | CASE ( '/' ) |
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264 | IF (BUFFER(L2-1:L2-1) /= '/' .AND. BUFFER(L2+1:L2+1) & |
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265 | /= '/') THEN |
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266 | STAMNT(LENST+1:LENST+3) = ' / ' |
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267 | LENST = LENST + 3 |
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268 | ELSE |
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269 | GO TO 3 |
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270 | END IF |
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271 | CASE ('+') |
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272 | IF (BUFFER(L2-1:L2-1) /= 'E' .AND. & |
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273 | BUFFER(L2-1:L2-1) /= 'e' .AND. & |
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274 | BUFFER(L2-1:L2-1) /= 'D' .AND. & |
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275 | BUFFER(L2-1:L2-1) /= 'd' .OR. & |
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276 | LLT(BUFFER(L2+1:L2+1), '0') .AND. LGT(BUFFER(L2+1:L2+1), '9')& |
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277 | ) THEN |
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278 | STAMNT(LENST+1:LENST+3) = ' + ' |
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279 | LENST = LENST + 3 |
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280 | ELSE |
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281 | GO TO 3 |
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282 | END IF |
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283 | CASE ('-') |
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284 | IF (BUFFER(L2-1:L2-1) /= 'E' .AND. & |
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285 | BUFFER(L2-1:L2-1) /= 'e' .AND. & |
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286 | BUFFER(L2-1:L2-1) /= 'D' .AND. & |
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287 | BUFFER(L2-1:L2-1) /= 'd' .OR. & |
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288 | LLT(BUFFER(L2+1:L2+1), '0') .AND. LGT(BUFFER(L2+1:L2+1), '9')& |
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289 | ) THEN |
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290 | STAMNT(LENST+1:LENST+3) = ' - ' |
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291 | LENST = LENST + 3 |
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292 | ELSE |
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293 | GO TO 3 |
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294 | END IF |
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295 | CASE DEFAULT |
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296 | GO TO 3 |
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297 | END SELECT |
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298 | CYCLE |
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299 | 3 STAMNT(LENST+1:LENST+1) = BUFFER(L2:L2) |
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300 | LENST = LENST +1 |
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301 | END DO |
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302 | ! |
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303 | ! Blank out end of statement |
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304 | IF (LENOLD > LENST) STAMNT(LENST+1:LENOLD) = ' ' |
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305 | IF (LENST < LEN .AND. MOD(LENST, 66) /= 0) & |
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306 | STAMNT(LENST+1: LENST+66-MOD(LENST, 66)) = ' ' |
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307 | ! |
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308 | 99 RETURN |
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309 | END SUBROUTINE BLANK |
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310 | SUBROUTINE IDENTIFY (IRET) |
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311 | ! |
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312 | !*********************************************************************** |
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313 | ! To identify statement as beginning or end of DO-loop or * |
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314 | ! IF-block, or as probable FORMAT. * |
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315 | ! Attempt to scan as few of the input characters as possible. * |
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316 | !*********************************************************************** |
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317 | ! |
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318 | USE STRUCTURE |
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319 | USE DATA |
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320 | implicit none |
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321 | ! |
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322 | CHARACTER(LEN=5), PARAMETER :: ENDIF='ENDIF' , THEN='NEHT)', & |
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323 | THENLC='neht)' |
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324 | CHARACTER(LEN=3), PARAMETER :: BIF='IF(' |
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325 | CHARACTER(LEN=2), PARAMETER :: DO='DO' |
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326 | CHARACTER(LEN=7), PARAMETER :: FORMAT='FORMAT(' |
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327 | CHARACTER(LEN=4), PARAMETER :: ELSE='ELSE' |
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328 | CHARACTER(LEN=5) :: INTFIL |
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329 | INTEGER, INTENT(OUT) :: IRET |
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330 | ! |
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331 | integer :: l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, & |
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332 | k1, k2, k3, k5, k6, k7, k8, lparen, kntch, napos |
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333 | ! |
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334 | IRET = 0 |
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335 | ! |
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336 | ! Check whether end of DO-loop |
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337 | IF (KNTDO /= 0) THEN |
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338 | IF (LABEL == LABLDO(KNTDO)) THEN |
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339 | IRET = 2 |
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340 | GO TO 99 |
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341 | END IF |
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342 | END IF |
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343 | ! |
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344 | ! Check whether any of remaining possibilities |
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345 | DO L7 = 1 , LENST |
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346 | IF (STAMNT(L7:L7) == ' ') CYCLE |
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347 | IF (STAMNT(L7:L7) == 'E') THEN |
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348 | DO L11 = L7+1 , LENST |
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349 | IF (STAMNT(L11:L11) == ' ') CYCLE |
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350 | IF (STAMNT(L11:L11) == ENDIF(2:2)) GO TO 6 |
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351 | IF (STAMNT(L11:L11) == ELSE(2:2)) GO TO 3 |
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352 | GO TO 99 |
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353 | END DO |
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354 | END IF |
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355 | IF (STAMNT(L7:L7) == BIF(:1)) GO TO 9 |
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356 | IF (STAMNT(L7:L7) == DO(:1)) GO TO 15 |
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357 | IF (STAMNT(L7:L7) == FORMAT(:1)) GO TO 31 |
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358 | GO TO 99 |
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359 | END DO |
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360 | GO TO 99 |
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361 | ! |
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362 | ! Check whether ELSE or ELSEIF |
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363 | 3 K8 = 3 |
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364 | DO L12 = L11+1 , LENST |
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365 | IF (STAMNT(L12:L12) == ' ') CYCLE |
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366 | IF (STAMNT(L12:L12) /= ELSE(K8:K8)) GO TO 99 |
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367 | IF (K8 == 4) GO TO 5 |
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368 | K8 = K8+1 |
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369 | END DO |
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370 | GO TO 99 |
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371 | 5 IF (L12 >= LENST) THEN |
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372 | IRET = 6 |
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373 | GO TO 99 |
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374 | END IF |
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375 | IF (STAMNT(L12+1:LENST) == ' ') THEN |
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376 | IRET = 6 |
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377 | GO TO 99 |
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378 | END IF |
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379 | K2 = 1 |
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380 | IRET = 6 |
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381 | L7 = L12 |
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382 | GO TO 10 |
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383 | ! |
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384 | ! Check whether end of IF-block |
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385 | 6 K1 = 3 |
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386 | DO L1 = L11+1 , LENST |
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387 | IF (STAMNT(L1:L1) == ' ') CYCLE |
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388 | IF (STAMNT(L1:L1) /= ENDIF(K1:K1)) GO TO 99 |
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389 | IF (K1 == 5) EXIT |
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390 | K1 = K1+1 |
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391 | END DO |
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392 | IF (L1 >= LENST) THEN |
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393 | IRET = 4 |
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394 | GO TO 99 |
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395 | END IF |
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396 | IF (STAMNT(L1+1:LENST) == ' ') IRET = 4 |
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397 | GO TO 99 |
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398 | ! |
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399 | ! Check whether beginning of IF-block |
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400 | 9 K2 = 2 |
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401 | IRET = 3 |
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402 | 10 DO L2 = L7+1 , LENST |
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403 | IF (STAMNT(L2:L2) == ' ') CYCLE |
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404 | IF (STAMNT(L2:L2) /= BIF(K2:K2)) THEN |
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405 | IRET = 0 |
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406 | GO TO 99 |
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407 | END IF |
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408 | IF (K2 == 3) GO TO 12 |
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409 | K2 = K2+1 |
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410 | END DO |
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411 | IRET = 0 |
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412 | GO TO 99 |
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413 | ! |
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414 | ! Backward search for )THEN at end of IF statement (to save |
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415 | ! scanning the condition). |
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416 | 12 K3 = 1 |
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417 | DO L3 = LENST , L2+1 , -1 |
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418 | IF (STAMNT(L3:L3) == ' ') CYCLE |
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419 | IF (STAMNT(L3:L3) /= THEN(K3:K3) .AND. & |
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420 | STAMNT(L3:L3) /= THENLC(K3:K3)) THEN |
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421 | IRET = 0 |
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422 | GO TO 99 |
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423 | END IF |
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424 | IF (K3 == 5) GO TO 99 |
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425 | K3 = K3+1 |
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426 | END DO |
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427 | IRET = 0 |
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428 | GO TO 99 |
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429 | ! |
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430 | ! Check whether beginning of DO-loop |
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431 | 15 DO L4 = L7+1 , LENST |
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432 | IF (STAMNT(L4:L4) == ' ') CYCLE |
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433 | IF (STAMNT(L4:L4) == DO(2:2)) GO TO 17 |
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434 | GO TO 99 |
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435 | END DO |
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436 | GO TO 99 |
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437 | ! |
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438 | ! Have DO - check label |
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439 | 17 K5 = 0 |
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440 | INTFIL = ' ' |
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441 | DO L5 = L4+1 , LENST |
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442 | IF (STAMNT(L5:L5) == ' ') CYCLE |
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443 | IF (LLT(STAMNT(L5:L5) , '0') .OR. LGT(STAMNT(L5:L5) , '9')) & |
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444 | EXIT |
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445 | K5 = K5+1 |
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446 | IF (K5 > 5) GO TO 20 |
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447 | INTFIL(K5:K5) = STAMNT(L5:L5) |
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448 | END DO |
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449 | IF (K5 == 0) GO TO 99 |
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450 | 20 READ (INTFIL , '(BN , I5)') LABLNO |
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451 | IF (LABLNO == 0) GO TO 99 |
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452 | ! |
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453 | ! Have label - check comma |
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454 | DO L8 = L5, LENST |
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455 | IF (STAMNT(L8:L8) == ' ') CYCLE |
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456 | IF (STAMNT(L8:L8) == ',') EXIT |
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457 | GO TO 23 |
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458 | END DO |
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459 | IRET = 1 |
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460 | GO TO 99 |
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461 | ! |
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462 | ! Have a DO and label with no comma. |
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463 | ! Check for variable whose first of maximum of six |
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464 | ! characters is alphabetic, followed by an equals sign, |
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465 | ! followed by a character string containing a comma which is |
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466 | ! not enclosed in parentheses. |
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467 | 23 K6 = 0 |
---|
468 | DO L9 = L8 , LENST |
---|
469 | IF (STAMNT(L9:L9) == ' ') CYCLE |
---|
470 | IF (K6 == 0) THEN |
---|
471 | IF ((LLT(STAMNT(L9:L9), 'A') .OR. LGT(STAMNT(L9:L9), 'Z')) & |
---|
472 | .AND.(LLT(STAMNT(L9:L9), 'a') .OR. LGT(STAMNT(L9:L9), 'z')))& |
---|
473 | GO TO 99 |
---|
474 | K6 = 1 |
---|
475 | ELSE IF (LGE(STAMNT(L9:L9) , 'A') .AND. LLE(STAMNT(L9:L9),'Z')& |
---|
476 | .OR. LGE(STAMNT(L9:L9) , 'a') .AND. LLE(STAMNT(L9:L9) ,'z')& |
---|
477 | .OR. LGE(STAMNT(L9:L9) , '0') .AND. LLE(STAMNT(L9:L9) , '9')) & |
---|
478 | THEN |
---|
479 | K6 = K6+1 |
---|
480 | IF (K6 == 6) GO TO 26 |
---|
481 | ELSE |
---|
482 | IF (K6 == 0) GO TO 99 |
---|
483 | GO TO 25 |
---|
484 | END IF |
---|
485 | END DO |
---|
486 | GO TO 99 |
---|
487 | ! |
---|
488 | ! Expect an equals sign |
---|
489 | 25 L9=L9-1 |
---|
490 | 26 DO L10 = L9+1 , LENST |
---|
491 | IF (STAMNT(L10:L10) == ' ') CYCLE |
---|
492 | IF (STAMNT(L10:L10) == '=') GO TO 28 |
---|
493 | GO TO 99 |
---|
494 | END DO |
---|
495 | GO TO 99 |
---|
496 | ! |
---|
497 | ! Search for bare comma |
---|
498 | 28 LPAREN = 0 |
---|
499 | KNTCH = 0 |
---|
500 | NAPOS = 0 |
---|
501 | DO L6 = L10+1 , LENST |
---|
502 | IF (STAMNT(L6:L6) == ' ') CYCLE |
---|
503 | IF (STAMNT(L6:L6) == "'") NAPOS = 1 - NAPOS |
---|
504 | IF (NAPOS == 1) CYCLE |
---|
505 | IF (STAMNT(L6:L6) == ',') THEN |
---|
506 | IF (KNTCH /= 0) THEN |
---|
507 | IF (LPAREN == 0) GO TO 30 |
---|
508 | CYCLE |
---|
509 | ELSE |
---|
510 | GO TO 99 |
---|
511 | END IF |
---|
512 | ELSE IF (STAMNT(L6:L6) == '(') THEN |
---|
513 | LPAREN = LPAREN+1 |
---|
514 | ELSE IF (STAMNT(L6:L6) == ')') THEN |
---|
515 | LPAREN = LPAREN-1 |
---|
516 | END IF |
---|
517 | KNTCH = 1 |
---|
518 | END DO |
---|
519 | GO TO 99 |
---|
520 | 30 IRET = 1 |
---|
521 | ! |
---|
522 | ! Insert blank after label |
---|
523 | IF (.NOT.BLANKS .OR. LENST >= LEN) GO TO 99 |
---|
524 | DO L10 = LENST, L5, -1 |
---|
525 | STAMNT(L10+1:L10+1) = STAMNT(L10:L10) |
---|
526 | END DO |
---|
527 | STAMNT(L5:L5) = ' ' |
---|
528 | LENST = LENST + 1 |
---|
529 | GO TO 99 |
---|
530 | ! |
---|
531 | ! Identify FORMAT statement |
---|
532 | 31 IF (LABEL == 0) GO TO 99 |
---|
533 | K7 = 2 |
---|
534 | DO L11 = L7+1 , LENST |
---|
535 | IF (STAMNT(L11:L11) == ' ') CYCLE |
---|
536 | IF (STAMNT(L11:L11) /= FORMAT(K7:K7)) GO TO 99 |
---|
537 | IF (K7 == 7) GO TO 33 |
---|
538 | K7 = K7+1 |
---|
539 | END DO |
---|
540 | GO TO 99 |
---|
541 | 33 IRET = 5 |
---|
542 | ! |
---|
543 | 99 RETURN |
---|
544 | END SUBROUTINE IDENTIFY |
---|
545 | SUBROUTINE KEYWORD(ASSIGN, SKIP) |
---|
546 | ! |
---|
547 | ! To check whether those initial keywords of the statement which |
---|
548 | ! require it are followed by a blank, to add one if necessary, and |
---|
549 | ! to suppress any embedded blanks. |
---|
550 | ! |
---|
551 | USE STATISTICS |
---|
552 | ! |
---|
553 | USE STRUCTURE |
---|
554 | implicit none |
---|
555 | ! |
---|
556 | LOGICAL, INTENT(OUT) :: ASSIGN, SKIP |
---|
557 | ! |
---|
558 | INTEGER, PARAMETER :: NKEY = 42, MAXLEN = 15 |
---|
559 | CHARACTER(LEN=MAXLEN) :: BEGIN |
---|
560 | CHARACTER(LEN=LEN) :: BUFFER |
---|
561 | CHARACTER(LEN=3) :: THREE |
---|
562 | CHARACTER(LEN=32) :: NAMEOF |
---|
563 | CHARACTER(LEN=6), SAVE :: ARGNAM(445) |
---|
564 | LOGICAL :: IFASS |
---|
565 | INTEGER, SAVE :: LENARG(445) |
---|
566 | ! |
---|
567 | CHARACTER(LEN=MAXLEN), PARAMETER, dimension(nkey) :: KEYS = (/ & |
---|
568 | 'ASSIGN ', 'BACKSPACE ', 'BLOCKDATA ', & |
---|
569 | 'CALL ', 'CHARACTER ', 'CLOSE ', & |
---|
570 | 'COMMON ', 'COMPLEX ', 'CONTINUE ', & |
---|
571 | 'DATA ', 'DIMENSION ', 'DOUBLEPRECISION', & |
---|
572 | 'DO ', 'ELSEIF ', 'ELSE ', & |
---|
573 | 'ENDFILE ', 'ENDIF ', 'ENTRY ', & |
---|
574 | 'EXTERNAL ', 'EQUIVALENCE ', 'FORMAT ', & |
---|
575 | 'FUNCTION ', 'GOTO ', 'IF ', & |
---|
576 | 'IMPLICIT ', 'INQUIRE ', 'INTEGER ', & |
---|
577 | 'INTRINSIC ', 'LOGICAL ', 'OPEN ', & |
---|
578 | 'PARAMETER ', 'PAUSE ', 'PRINT ', & |
---|
579 | 'PROGRAM ', 'READ ', 'REAL ', & |
---|
580 | 'RETURN ', 'REWIND ', 'SAVE ', & |
---|
581 | 'STOP ', 'SUBROUTINE ', 'WRITE '/) |
---|
582 | INTEGER, PARAMETER, dimension(nkey) :: LK = & |
---|
583 | (/6, 9, 9, 4, & |
---|
584 | 9, 5, 6, 7, 8, 4, & |
---|
585 | 9,15, 2, 6, 4, & |
---|
586 | 7, 5, 5, 8,11, & |
---|
587 | 6, 8, 4, 2, 8, 7, & |
---|
588 | 7, 9, 7, 4, 9, & |
---|
589 | 5, 5, 7, 4, 4, 6, & |
---|
590 | 6, 4, 4,10, 5 /) |
---|
591 | LOGICAL, PARAMETER, dimension(nkey) :: BLANK = & |
---|
592 | (/.TRUE., .TRUE., .TRUE., .TRUE., & |
---|
593 | .TRUE., .FALSE., .TRUE., .TRUE., .FALSE., .TRUE., & |
---|
594 | .TRUE., .TRUE., .TRUE., .FALSE., .FALSE., & |
---|
595 | .TRUE., .FALSE., .TRUE., .TRUE., .FALSE., & |
---|
596 | .FALSE., .TRUE., .TRUE., .FALSE., .TRUE., .FALSE., & |
---|
597 | .TRUE., .TRUE., .TRUE., .FALSE., .TRUE., & |
---|
598 | .TRUE., .TRUE., .TRUE., .TRUE., .TRUE., .TRUE., & |
---|
599 | .TRUE., .TRUE., .TRUE., .TRUE., .FALSE./) |
---|
600 | LOGICAL, PARAMETER, dimension(nkey) :: FOLLOW = & |
---|
601 | (/.TRUE., .TRUE., .FALSE., .TRUE., & |
---|
602 | .FALSE., .FALSE., .FALSE., .FALSE., .FALSE., .FALSE., & |
---|
603 | .FALSE., .FALSE., .FALSE., .FALSE., .FALSE., & |
---|
604 | .TRUE., .FALSE., .FALSE., .FALSE., .FALSE., & |
---|
605 | .FALSE., .FALSE., .TRUE., .FALSE., .FALSE., .FALSE., & |
---|
606 | .FALSE., .FALSE., .FALSE., .FALSE., .FALSE., & |
---|
607 | .TRUE., .TRUE., .FALSE., .TRUE., .FALSE., .TRUE., & |
---|
608 | .TRUE., .FALSE., .TRUE., .FALSE., .FALSE./) |
---|
609 | ! |
---|
610 | CHARACTER(LEN=MAXLEN), PARAMETER, dimension(nkey) :: KEYSLC = (/ & |
---|
611 | 'assign ', 'backspace ', 'blockdata ', & |
---|
612 | 'call ', 'character ', 'close ', & |
---|
613 | 'common ', 'complex ', 'continue ', & |
---|
614 | 'data ', 'dimension ', 'doubleprecision', & |
---|
615 | 'do ', 'elseif ', 'else ', & |
---|
616 | 'endfile ', 'endif ', 'entry ', & |
---|
617 | 'external ', 'equivalence ', 'format ', & |
---|
618 | 'function ', 'goto ', 'if ', & |
---|
619 | 'implicit ', 'inquire ', 'integer ', & |
---|
620 | 'intrinsic ', 'logical ', 'open ', & |
---|
621 | 'parameter ', 'pause ', 'print ', & |
---|
622 | 'program ', 'read ', 'real ', & |
---|
623 | 'return ', 'rewind ', 'save ', & |
---|
624 | 'stop ', 'subroutine ', 'write '/) |
---|
625 | ! |
---|
626 | integer :: l1, l2, l3, l4, l5, l6, l7, l20, lparen, kntap, kntch,& |
---|
627 | lc, lcc, l33, next, l8, napos, lsave, name_length |
---|
628 | ! |
---|
629 | ! Test for statement function statement or assignment statement |
---|
630 | SKIP = INTFL |
---|
631 | ASSIGN = .FALSE. |
---|
632 | IFASS = .FALSE. |
---|
633 | THREE = ' ' |
---|
634 | LPAREN = 0 |
---|
635 | KNTAP = 0 |
---|
636 | KNTCH = 0 |
---|
637 | DO L1 = 1, LENST |
---|
638 | IF (STAMNT(L1:L1)==' ') CYCLE |
---|
639 | IF (STAMNT(L1:L1)=='=') THEN |
---|
640 | IF (KNTCH==0) SYNERR = .TRUE. |
---|
641 | IF (LPAREN==0 .AND. KNTAP==0) THEN |
---|
642 | ASSIGN = .TRUE. |
---|
643 | GO TO 9 |
---|
644 | ELSE |
---|
645 | EXIT |
---|
646 | END IF |
---|
647 | ELSE IF (STAMNT(L1:L1)=='(') THEN |
---|
648 | LPAREN = LPAREN+1 |
---|
649 | ELSE IF (STAMNT(L1:L1)==')') THEN |
---|
650 | LPAREN = LPAREN-1 |
---|
651 | ELSE IF (STAMNT(L1:L1)=="'") THEN |
---|
652 | KNTAP = 1-KNTAP |
---|
653 | END IF |
---|
654 | KNTCH = KNTCH+1 |
---|
655 | IF (KNTCH<=3) THREE(KNTCH:KNTCH) = STAMNT(L1:L1) |
---|
656 | END DO |
---|
657 | ! |
---|
658 | ! Suppress blanks in first 15 non-blank characters |
---|
659 | 10 BEGIN = ' ' |
---|
660 | LC = 0 |
---|
661 | DO L2 = 1, LENST |
---|
662 | IF (STAMNT(L2:L2)==' ') CYCLE |
---|
663 | LC = LC+1 |
---|
664 | BEGIN(LC:LC) = STAMNT(L2:L2) |
---|
665 | IF (LC==MAXLEN) GO TO 3 |
---|
666 | END DO |
---|
667 | L2 = L2-1 |
---|
668 | ! |
---|
669 | ! Is this a keyword? Failure of this test is not fatal, in order to |
---|
670 | ! allow for non-standard syntax extensions. |
---|
671 | 3 DO L3 = 1, NKEY |
---|
672 | IF (BEGIN(:LK(L3)) == KEYS(L3)(:LK(L3))) THEN |
---|
673 | GO TO 5 |
---|
674 | ELSE IF (BEGIN(:LK(L3)) == KEYSLC(L3)(:LK(L3))) THEN |
---|
675 | LCC = 0 |
---|
676 | DO L33 = 1, L2 |
---|
677 | IF (STAMNT(L33:L33) == ' ') CYCLE |
---|
678 | LCC = LCC + 1 |
---|
679 | IF (LCC == LK(L3)) EXIT |
---|
680 | END DO |
---|
681 | STAMNT(:L33) = KEYS(L3)(:LK(L3)) |
---|
682 | GO TO 5 |
---|
683 | END IF |
---|
684 | END DO |
---|
685 | NONSTD = .TRUE. |
---|
686 | GO TO 98 |
---|
687 | ! |
---|
688 | ! Test for embedded blanks in keyword |
---|
689 | 5 IF (L2 /= LC) THEN |
---|
690 | LC = 0 |
---|
691 | DO L4 =1, LENST |
---|
692 | IF (STAMNT(L4:L4)==' ') CYCLE |
---|
693 | LC = LC+1 |
---|
694 | IF (LC==LK(L3)) GO TO 7 |
---|
695 | END DO |
---|
696 | GO TO 8 |
---|
697 | 7 IF (L4==LC) GO TO 8 |
---|
698 | STAMNT(:L4) = KEYS(L3)(:LC) |
---|
699 | GO TO 99 |
---|
700 | END IF |
---|
701 | ! |
---|
702 | ! Keyword has no blanks - is it followed by a blank if it needs one? |
---|
703 | 8 IF (.NOT.BLANK(L3)) GO TO 99 |
---|
704 | NEXT = 0 |
---|
705 | DO L8 = 1, LK(L3) |
---|
706 | 17 NEXT = NEXT+1 |
---|
707 | IF (STAMNT(NEXT:NEXT)==' ') GO TO 17 |
---|
708 | END DO |
---|
709 | NEXT = NEXT+1 |
---|
710 | IF (STAMNT(NEXT:NEXT)==' ') GO TO 99 |
---|
711 | ! |
---|
712 | ! Sometimes a delimiter may be present |
---|
713 | IF (L3==2.OR.L3==16.OR.L3==23.OR.L3==35.OR.L3==38) THEN |
---|
714 | IF (STAMNT(NEXT:NEXT)=='(') GO TO 99 |
---|
715 | ELSE IF (L3==5) THEN |
---|
716 | IF (STAMNT(NEXT:NEXT)=='*') GO TO 99 |
---|
717 | ELSE IF (L3==7.OR.L3==39) THEN |
---|
718 | IF (STAMNT(NEXT:NEXT)=='/') GO TO 99 |
---|
719 | END IF |
---|
720 | IF (LENST==LEN) THEN |
---|
721 | OVFLW = .TRUE. |
---|
722 | GO TO 99 |
---|
723 | END IF |
---|
724 | ! |
---|
725 | ! Insert the blank |
---|
726 | BUFFER(NEXT:LENST) = STAMNT(NEXT:LENST) |
---|
727 | LENST = LENST+1 |
---|
728 | STAMNT(NEXT:NEXT) = ' ' |
---|
729 | STAMNT(NEXT+1:LENST) = BUFFER(NEXT:LENST-1) |
---|
730 | BLNKFL = .TRUE. |
---|
731 | GO TO 99 |
---|
732 | ! |
---|
733 | ! Check whether, in fact, a DO-loop |
---|
734 | 9 IF (THREE(:2) /= 'DO' .AND. THREE(:2) /= 'do') GO TO 12 |
---|
735 | LPAREN = 0 |
---|
736 | NAPOS = 0 |
---|
737 | DO L5 = L1+2, LENST |
---|
738 | IF (STAMNT(L5:L5)==' ') CYCLE |
---|
739 | IF (STAMNT(L5:L5) == "'") NAPOS = 1 - NAPOS |
---|
740 | IF (NAPOS == 1) CYCLE |
---|
741 | IF (STAMNT(L5:L5)==',') THEN |
---|
742 | IF (LPAREN==0) THEN |
---|
743 | ASSIGN = .FALSE. |
---|
744 | GO TO 10 |
---|
745 | END IF |
---|
746 | ELSE IF (STAMNT(L5:L5)=='(') THEN |
---|
747 | LPAREN = LPAREN+1 |
---|
748 | ELSE IF (STAMNT(L5:L5)==')') THEN |
---|
749 | LPAREN = LPAREN-1 |
---|
750 | END IF |
---|
751 | END DO |
---|
752 | GO TO 99 |
---|
753 | ! |
---|
754 | ! Check whether, in fact, a logical IF followed by an assignment |
---|
755 | 12 IF (THREE /= 'IF(' .AND. THREE /= 'if(') GO TO 99 |
---|
756 | IFASS = .TRUE. |
---|
757 | DO L6 = L1-1, 1, -1 |
---|
758 | IF (STAMNT(L6:L6)==' ') CYCLE |
---|
759 | IF (STAMNT(L6:L6)==')') THEN |
---|
760 | ! |
---|
761 | ! Is there a second pair of first-level parentheses |
---|
762 | IF (index(STAMNT(:L6), ')')==0) GO TO 99 |
---|
763 | LPAREN = 1 |
---|
764 | DO L7 = L6-1, 4, -1 |
---|
765 | IF (STAMNT(L7:L7)==' ') CYCLE |
---|
766 | IF (STAMNT(L7:L7)==')') THEN |
---|
767 | IF (LPAREN==0) THEN |
---|
768 | GO TO 14 |
---|
769 | ELSE |
---|
770 | LPAREN = LPAREN+1 |
---|
771 | END IF |
---|
772 | ELSE IF (STAMNT(L7:L7)=='(') THEN |
---|
773 | LPAREN = LPAREN-1 |
---|
774 | END IF |
---|
775 | END DO |
---|
776 | GO TO 99 |
---|
777 | 14 ASSIGN = .FALSE. |
---|
778 | GO TO 10 |
---|
779 | ELSE |
---|
780 | ASSIGN = .FALSE. |
---|
781 | GO TO 10 |
---|
782 | END IF |
---|
783 | END DO |
---|
784 | ! |
---|
785 | ! Test for non-executable statement keyword |
---|
786 | 99 IF (ASSIGN) GO TO 98 |
---|
787 | IF (.NOT.INTFL) GO TO 97 |
---|
788 | SKIP = L3 == 3.OR.L3 == 5.OR.L3 == 8 & |
---|
789 | .OR.L3 == 11.OR.L3 == 12.OR.L3 == 19.OR.L3 == 22 & |
---|
790 | .OR.L3 == 25.OR.L3 == 27.OR.L3 == 29 & |
---|
791 | .OR.L3 == 34.OR.L3 == 36.OR.L3 == 41 |
---|
792 | SKIP = .NOT.SKIP |
---|
793 | IF (SKIP) GO TO 98 |
---|
794 | ! |
---|
795 | ! Check whether this statement refers to an argument or a function |
---|
796 | ! name |
---|
797 | IF (L3 == 3 .OR. L3 == 22 .OR. L3 == 25 .OR. & |
---|
798 | L3 == 34 .OR. L3 == 41) GO TO 97 |
---|
799 | IF(index(STAMNT(LK(L3)+1:LENST), 'FUNCTION')/= .0 .OR. & |
---|
800 | index(STAMNT(LK(L3)+1:LENST), 'function') /= 0) GO TO 97 |
---|
801 | DO L20 = 1, NOARG |
---|
802 | IF(index(STAMNT(LK(L3)+1:LENST), ARGNAM(L20)(:LENARG(L20))) & |
---|
803 | /= 0) GO TO 97 |
---|
804 | END DO |
---|
805 | SKIP = .TRUE. |
---|
806 | GO TO 98 |
---|
807 | ! |
---|
808 | ! Keep procedure name for END statement |
---|
809 | 97 call name_of(nameof, stamnt(lk(l3)+2:lenst), name_length) |
---|
810 | IF(L3 == 3.OR.L3 == 22.OR.L3 == 34.OR. & |
---|
811 | L3 == 41) NAME = KEYS(L3)(:LK(L3))//NAMEOF(:name_length) |
---|
812 | ! |
---|
813 | ! Get argument names for later use in skipping unnecessary |
---|
814 | ! specifications |
---|
815 | 21 IF (INTFL) THEN |
---|
816 | IF (L3 == 22) THEN |
---|
817 | ARGNAM(1) = NAME(10:15) |
---|
818 | NOARG = 1 |
---|
819 | END IF |
---|
820 | IF (L3 == 22 .OR. L3 == 41) & |
---|
821 | CALL ARGUMENT(ARGNAM, LENARG, STAMNT, LENST, NOARG) |
---|
822 | END IF |
---|
823 | ! |
---|
824 | ! Deal with awkward cases |
---|
825 | LSAVE = L3 |
---|
826 | IF(L3 == 1.OR.L3 == 5.OR.L3 == 8.OR.L3 == 12 .OR. L3 == 13 & |
---|
827 | .OR. L3 == 25 & |
---|
828 | .OR.L3 == 24.AND..NOT.IFASS.OR.L3 == 27.OR.L3 == 29.OR.L3 == 36) & |
---|
829 | CALL SPECIAL(L3, NEXT, BUFFER, NKEY, KEYS, KEYSLC, LK, FOLLOW) |
---|
830 | ! |
---|
831 | ! Was, in fact, a function |
---|
832 | IF (INTFL.AND.L3 == 22.AND.LSAVE /= 22) THEN |
---|
833 | SKIP = .FALSE. |
---|
834 | GO TO 21 |
---|
835 | END IF |
---|
836 | ! |
---|
837 | ! Print procedure name |
---|
838 | 98 IF(.NOT.ASSIGN.AND.(L3 == 3.OR.L3 == 22.OR.L3 == 34.OR.L3 == 41))& |
---|
839 | WRITE (*, '('' Starting '', A)') NAME |
---|
840 | RETURN |
---|
841 | END SUBROUTINE KEYWORD |
---|
842 | subroutine NAME_OF(nameof, HEADER, name_length) |
---|
843 | ! |
---|
844 | implicit none |
---|
845 | ! Pick out name of procedure |
---|
846 | CHARACTER(LEN=*), INTENT(IN) :: HEADER |
---|
847 | CHARACTER(LEN=*), INTENT(out):: nameof |
---|
848 | integer, intent(out) :: name_length |
---|
849 | integer :: ind, indast |
---|
850 | ! |
---|
851 | NAMEOF = ' ' |
---|
852 | ! |
---|
853 | ! Is there a left parenthesis or an asterisk? |
---|
854 | IND = index(HEADER, '(' ) |
---|
855 | INDAST = index(HEADER, '*') |
---|
856 | IF (IND /= 0 .AND. INDAST /= 0) IND = MIN(IND, INDAST) |
---|
857 | IF (IND <= LEN(NAMEOF)) THEN |
---|
858 | IF (IND == 0) THEN |
---|
859 | NAMEOF(2:) = HEADER(:LEN(HEADER)) |
---|
860 | name_length = min(len(header)+1, len(nameof)) |
---|
861 | ELSE |
---|
862 | NAMEOF(2:IND) = HEADER(:IND-1) |
---|
863 | name_length = ind |
---|
864 | END IF |
---|
865 | END IF |
---|
866 | RETURN |
---|
867 | END subroutine NAME_OF |
---|
868 | SUBROUTINE PROGRAM_UNITS( ) |
---|
869 | ! |
---|
870 | !*********************************************************************** |
---|
871 | ! The principal subroutine of CONVERT processes the * |
---|
872 | ! input stream, which is assumed to contain syntactically correct * |
---|
873 | ! Fortran program units. To protect itself from bad data, failure * |
---|
874 | ! to pass a primitive syntax check will cause the program to copy * |
---|
875 | ! the input stream to the output unit unchanged, until an END line is* |
---|
876 | ! encountered. * |
---|
877 | !*********************************************************************** |
---|
878 | ! |
---|
879 | USE DATA |
---|
880 | ! |
---|
881 | USE STATISTICS |
---|
882 | ! |
---|
883 | USE STRUCTURE |
---|
884 | implicit none |
---|
885 | ! |
---|
886 | !*********************************************************************** |
---|
887 | ! USER is a character which may be defined to identify lines * |
---|
888 | ! in the input stream which are to be treated as * |
---|
889 | ! comment lines ( + in this example). * |
---|
890 | !*********************************************************************** |
---|
891 | ! |
---|
892 | CHARACTER(LEN=1) :: CONTIN |
---|
893 | CHARACTER(LEN=3), PARAMETER :: FIN='END', FINLC='end' |
---|
894 | CHARACTER(LEN=66) :: FIELD |
---|
895 | CHARACTER(LEN=72) :: LINE |
---|
896 | CHARACTER(LEN=72), PARAMETER :: BLANKV=' ' |
---|
897 | ! |
---|
898 | LOGICAL :: NEWDO , NEWIF , FORM , ELSEBL , ASSIGN |
---|
899 | ! |
---|
900 | CHARACTER(LEN=*), PARAMETER :: USER = '+' |
---|
901 | LOGICAL :: STAT = .FALSE. , SKIP = .FALSE. |
---|
902 | ! |
---|
903 | integer :: l1, l5, l22, kntcon, napo, lab, l9, k1, & |
---|
904 | irtcod, nend |
---|
905 | ! |
---|
906 | ! Start processing program units |
---|
907 | MXDO = 0 |
---|
908 | MXIF = 0 |
---|
909 | KARD = 0 |
---|
910 | KNTPU = 0 |
---|
911 | SYNTAX = .FALSE. |
---|
912 | SYNERR = .FALSE. |
---|
913 | OVFLW = .FALSE. |
---|
914 | NONSTD = .FALSE. |
---|
915 | KNTDO = 0 |
---|
916 | KNTIF = 0 |
---|
917 | KNTCOM = 0 |
---|
918 | NAME = ' ' |
---|
919 | NOARG = 0 |
---|
920 | INTFL = INTBFL |
---|
921 | ! |
---|
922 | ! Set continuation line counter |
---|
923 | 1 KNTCON = 0 |
---|
924 | ! |
---|
925 | ! Set statement length counter |
---|
926 | LENST = 0 |
---|
927 | ! |
---|
928 | ! Read one line into an internal file, |
---|
929 | ! columns 73-80 of all lines are ignored. |
---|
930 | 2 READ (NIN , '(A)' , END = 100 , ERR = 100) LINE |
---|
931 | KARD = KARD+1 |
---|
932 | ! |
---|
933 | ! Check whether a comment line and if so copy to buffer. |
---|
934 | IF (LINE(:1) == 'C' .OR. LINE(:1) == '*' .OR. LINE(:1) == & |
---|
935 | USER .OR. LINE == ' ' .OR. LINE(:1) == 'c' & |
---|
936 | .OR. LINE(:1) == '!') THEN |
---|
937 | IF (INTFL) GO TO 2 |
---|
938 | IF (LINE(:1) == 'C' .OR. LINE(:1) == '*' & |
---|
939 | .OR. LINE(:1) == 'c') LINE(:1) = '!' |
---|
940 | IF (KNTCOM == KKLIM) THEN |
---|
941 | WRITE (NOUT , '(A72)') (CBUF(72*L5-71:72*L5) , L5 = 1 , & |
---|
942 | KNTCOM) , LINE |
---|
943 | KNTCOM = 0 |
---|
944 | ELSE IF (SYNERR .OR. .NOT.STAT) THEN |
---|
945 | WRITE (NOUT , '(A72)') LINE |
---|
946 | ELSE |
---|
947 | KNTCOM = KNTCOM+1 |
---|
948 | CBUF(72*KNTCOM-71:72*KNTCOM) = LINE |
---|
949 | END IF |
---|
950 | GO TO 2 |
---|
951 | END IF |
---|
952 | ! |
---|
953 | ! Some form of embedded comment? |
---|
954 | NAPO = 0 |
---|
955 | DO L22 = 2, 72 |
---|
956 | IF (LINE(L22:L22) == '''') NAPO = 1 - NAPO |
---|
957 | IF (L22 == 6) CYCLE |
---|
958 | IF (LINE(L22:L22) /= '!') CYCLE |
---|
959 | IF (NAPO /= 0) CYCLE |
---|
960 | IF (.NOT. INTFL) THEN |
---|
961 | IF (KNTCOM < KKLIM) THEN |
---|
962 | KNTCOM = KNTCOM +1 |
---|
963 | CBUF(72*KNTCOM-71:72*KNTCOM) = & |
---|
964 | BLANKV(:L22-1)//LINE(L22:72) |
---|
965 | ELSE |
---|
966 | WRITE (NOUT, '(A)') BLANKV(:L22-1)//LINE(L22:72) |
---|
967 | END IF |
---|
968 | END IF |
---|
969 | LINE(L22:72) = ' ' |
---|
970 | IF (LINE == ' ') GO TO 2 |
---|
971 | EXIT |
---|
972 | END DO |
---|
973 | ! |
---|
974 | ! Line is some form of statement; re-read. |
---|
975 | READ (LINE , '(BN , I5 , A1 , A66)') LAB , CONTIN , FIELD |
---|
976 | STAT = .TRUE. |
---|
977 | ! |
---|
978 | ! Check on syntax and copy to statement buffer |
---|
979 | 3 IF (CONTIN == '0') CONTIN = ' ' |
---|
980 | IF (CONTIN /= ' ') THEN |
---|
981 | CONTIN = '&' |
---|
982 | IF (SYNERR) THEN |
---|
983 | GO TO 6 |
---|
984 | ELSE IF (LENST == 0 .OR. LENST+66 > LEN .OR. LAB /= 0) THEN |
---|
985 | SYNERR = .TRUE. |
---|
986 | IF (LENST > 0) THEN |
---|
987 | IF (LABEL /= 0) THEN |
---|
988 | WRITE (NOUT , '(I5, 1X, A66:"&"/(5X, "&", A66: & |
---|
989 | & "&"))') LABEL , & |
---|
990 | (STAMNT(66*L9-65:66*L9) , L9 = 1 , (LENST+65)/66) |
---|
991 | ELSE |
---|
992 | WRITE (NOUT , '(6X, A66:"&"/(5X, "&", A66:"&" & |
---|
993 | & ))') (STAMNT(66*L9-65:66*L9) , L9 = 1 , (LENST+65)/66) |
---|
994 | END IF |
---|
995 | END IF |
---|
996 | IF (LAB /= 0) THEN |
---|
997 | WRITE (NOUT , 1000) LAB , CONTIN , FIELD |
---|
998 | ELSE |
---|
999 | WRITE (NOUT , 1006) CONTIN , FIELD |
---|
1000 | END IF |
---|
1001 | GO TO 1 |
---|
1002 | ELSE |
---|
1003 | KNTCON = KNTCON+1 |
---|
1004 | STAMNT(LENST+1:LENST+66) = FIELD |
---|
1005 | LENST = LENST+66 |
---|
1006 | GO TO 2 |
---|
1007 | END IF |
---|
1008 | ELSE IF (KNTCON == 0) THEN |
---|
1009 | IF (LENST /= 0) GO TO 4 |
---|
1010 | STAMNT(1:66) = FIELD |
---|
1011 | LENST = 66 |
---|
1012 | LABEL = LAB |
---|
1013 | IF (SYNERR) GO TO 4 |
---|
1014 | GO TO 2 |
---|
1015 | END IF |
---|
1016 | IF (KNTCON > 0) GO TO 6 |
---|
1017 | ! |
---|
1018 | ! Have a complete statement ready for processing (the last line |
---|
1019 | ! read is still waiting in LINE). The statement now needs to be |
---|
1020 | ! identified. |
---|
1021 | ! The END statement is a special case - if found it will be copied |
---|
1022 | ! and the next program unit processed. |
---|
1023 | 4 K1 = 1 |
---|
1024 | DO L1 = 1 , LENST |
---|
1025 | IF (STAMNT(L1:L1) == ' ') CYCLE |
---|
1026 | IF (STAMNT(L1:L1) /= FIN(K1:K1) .AND. & |
---|
1027 | STAMNT(L1:L1) /= FINLC(K1:K1)) THEN |
---|
1028 | EXIT |
---|
1029 | ELSE |
---|
1030 | K1 = K1+1 |
---|
1031 | IF (K1 > 3 .AND. (L1 >= LENST .OR. STAMNT(L1+1:LENST) & |
---|
1032 | == ' ')) THEN |
---|
1033 | IF (.NOT.SYNERR) THEN |
---|
1034 | KNTPU=KNTPU+1 |
---|
1035 | IF (LABEL == 0) THEN |
---|
1036 | WRITE (NOUT , 1001) FIN, NAME |
---|
1037 | ELSE |
---|
1038 | WRITE (NOUT , 1002) LABEL , FIN, NAME |
---|
1039 | END IF |
---|
1040 | END IF |
---|
1041 | ! |
---|
1042 | ! Set counters for new program unit |
---|
1043 | SYNTAX = SYNTAX .OR. SYNERR |
---|
1044 | KNTDO = 0 |
---|
1045 | KNTIF = 0 |
---|
1046 | SYNERR = .FALSE. |
---|
1047 | KNTCON = 0 |
---|
1048 | LENST = 0 |
---|
1049 | IF (KNTCOM /= 0) WRITE (NOUT , '(A72)') (CBUF(72*L5-71: & |
---|
1050 | 72*L5) , L5 = 1 , KNTCOM) |
---|
1051 | KNTCOM = 0 |
---|
1052 | NAME = ' ' |
---|
1053 | NOARG = 0 |
---|
1054 | GO TO 3 |
---|
1055 | ELSE |
---|
1056 | IF (K1 > 3) EXIT |
---|
1057 | END IF |
---|
1058 | END IF |
---|
1059 | END DO |
---|
1060 | ! |
---|
1061 | ! If syntax error flag set, copy and take next statement |
---|
1062 | 6 IF (SYNERR) THEN |
---|
1063 | IF (LAB /= 0) THEN |
---|
1064 | WRITE (NOUT , 1000) LAB , CONTIN , FIELD |
---|
1065 | ELSE |
---|
1066 | WRITE (NOUT , 1006) CONTIN , FIELD |
---|
1067 | END IF |
---|
1068 | LENST = 0 |
---|
1069 | GO TO 2 |
---|
1070 | END IF |
---|
1071 | ! |
---|
1072 | ! Compress blanks and insert blanks around special characters |
---|
1073 | CALL BLANK( ) |
---|
1074 | ! |
---|
1075 | ! Handle Fortran keywords |
---|
1076 | NEWDO = .FALSE. |
---|
1077 | NEWIF = .FALSE. |
---|
1078 | FORM = .FALSE. |
---|
1079 | ELSEBL = .FALSE. |
---|
1080 | ASSIGN = .FALSE. |
---|
1081 | IF (BLANKS) CALL KEYWORD(ASSIGN, SKIP) |
---|
1082 | IF (SKIP) GO TO 16 |
---|
1083 | IF (SYNERR) GO TO 6 |
---|
1084 | IF (BLANKS .AND. ASSIGN .AND. LABEL == 0) GO TO 14 |
---|
1085 | ! |
---|
1086 | ! Have a valid statement which is not an END line or assignment |
---|
1087 | ! Identify statement as DO |
---|
1088 | ! IF ( ) THEN |
---|
1089 | ! DO terminator |
---|
1090 | ! END IF |
---|
1091 | ! FORMAT |
---|
1092 | ! ELSE or ELSEIF |
---|
1093 | ! none of these. |
---|
1094 | CALL IDENTIFY(IRTCOD) |
---|
1095 | SELECT CASE (IRTCOD) |
---|
1096 | CASE (0) |
---|
1097 | GO TO 14 |
---|
1098 | ! |
---|
1099 | ! New DO-loop |
---|
1100 | CASE (1) |
---|
1101 | IF (KNTDO == NEST) GO TO 14 |
---|
1102 | NEWDO = .TRUE. |
---|
1103 | LABLDO(KNTDO+1) = LABLNO |
---|
1104 | ! |
---|
1105 | ! End of DO-loop(s) |
---|
1106 | CASE (2) |
---|
1107 | NEND = 0 |
---|
1108 | DO L5 = KNTDO , 1 , -1 |
---|
1109 | IF (LABLDO(L5) /= LABEL) EXIT |
---|
1110 | NEND = NEND + 1 |
---|
1111 | END DO |
---|
1112 | ! |
---|
1113 | ! Replace CONTINUE by END DO |
---|
1114 | KNTDO = KNTDO - NEND |
---|
1115 | IF (NEND == 1 .AND. LENST == 10 .AND. STAMNT(:LENST) == & |
---|
1116 | 'CONTINUE ') THEN |
---|
1117 | STAMNT(:8) = 'END DO ' |
---|
1118 | LENST = 6 |
---|
1119 | END IF |
---|
1120 | ! |
---|
1121 | ! Beginning of IF-block |
---|
1122 | CASE (3) |
---|
1123 | NEWIF = .TRUE. |
---|
1124 | ! |
---|
1125 | ! End of IF-block |
---|
1126 | CASE (4) |
---|
1127 | KNTIF = KNTIF-1 |
---|
1128 | IF (KNTIF < 0) THEN |
---|
1129 | SYNERR = .TRUE. |
---|
1130 | KNTIF = 0 |
---|
1131 | END IF |
---|
1132 | ! |
---|
1133 | ! FORMAT statement |
---|
1134 | CASE (5) |
---|
1135 | FORM =.TRUE. |
---|
1136 | ! |
---|
1137 | ! Beginning of ELSE-block |
---|
1138 | CASE (6) |
---|
1139 | IF (KNTIF > 0) THEN |
---|
1140 | ELSEBL = .TRUE. |
---|
1141 | ELSE |
---|
1142 | SYNERR = .TRUE. |
---|
1143 | END IF |
---|
1144 | END SELECT |
---|
1145 | ! |
---|
1146 | ! Reformat statements and write |
---|
1147 | 14 CALL REFORM (FORM , ELSEBL) |
---|
1148 | ! |
---|
1149 | ! Set variables for next statement |
---|
1150 | IF (NEWDO) KNTDO = KNTDO+1 |
---|
1151 | IF (NEWIF) KNTIF = KNTIF+1 |
---|
1152 | MXDO = MAX(MXDO , KNTDO) |
---|
1153 | MXIF = MAX(MXIF , KNTIF) |
---|
1154 | 16 KNTCON = 0 |
---|
1155 | LENST = 0 |
---|
1156 | GO TO 3 |
---|
1157 | ! |
---|
1158 | ! End of data. Last line must be an END. |
---|
1159 | 100 IF (LABEL == 0) WRITE (NOUT , 1001) FIN, NAME |
---|
1160 | IF (LABEL /= 0) WRITE (NOUT , 1002) LABEL , FIN, NAME |
---|
1161 | KNTPU=KNTPU+1 |
---|
1162 | IF (INTFL) WRITE (NOUT, '(6X, ''END INTERFACE'')') |
---|
1163 | ! |
---|
1164 | ! Note: if there is a syntax error, continued |
---|
1165 | ! statements do not have a trailing & |
---|
1166 | 1000 FORMAT(I5 , A1 , A) |
---|
1167 | 1001 FORMAT(TR6 , A3 ,TR1, A) |
---|
1168 | 1002 FORMAT(I5 , TR1 , A3 ,TR1, A) |
---|
1169 | 1006 FORMAT(TR5 , A1 , A66) |
---|
1170 | ! |
---|
1171 | RETURN |
---|
1172 | END SUBROUTINE PROGRAM_UNITS |
---|
1173 | SUBROUTINE REFORM (FORM , ELSEBL) |
---|
1174 | ! |
---|
1175 | ! Performs reformatting and output of accepted statements |
---|
1176 | ! |
---|
1177 | USE DATA |
---|
1178 | ! |
---|
1179 | USE STRUCTURE |
---|
1180 | implicit none |
---|
1181 | ! |
---|
1182 | INTEGER, PARAMETER :: LLIMIT = LEN-(LEN/66-1)*6 |
---|
1183 | CHARACTER(LEN=LEN) :: OUT |
---|
1184 | CHARACTER(LEN = 1) :: AMP |
---|
1185 | ! |
---|
1186 | LOGICAL, INTENT(IN) :: FORM , ELSEBL |
---|
1187 | ! |
---|
1188 | integer :: ind, ipnt, l6, l2, l3, l4, lout, idepth, kntap, kadd, & |
---|
1189 | l5, jpnt |
---|
1190 | ! |
---|
1191 | ! If FORMAT statement, do not indent |
---|
1192 | IF (FORM) GO TO 9 |
---|
1193 | ! |
---|
1194 | ! Remove the blanks before commas if no character string |
---|
1195 | IF (BLNKFL .AND. INDEX(STAMNT(:LENST), "'") == 0) THEN |
---|
1196 | IPNT = 1 |
---|
1197 | DO |
---|
1198 | IND = INDEX(STAMNT(IPNT:LENST), ' , ') |
---|
1199 | IF (IND == 0) EXIT |
---|
1200 | IND = IPNT + IND - 1 |
---|
1201 | STAMNT(IND:IND+2) = ', ' |
---|
1202 | IPNT = IND + 3 |
---|
1203 | END DO |
---|
1204 | END IF |
---|
1205 | ! |
---|
1206 | ! Reformat indented statement and write. If reformatting causes it |
---|
1207 | ! to exceed LEN characters, it will be copied unchanged. |
---|
1208 | IDEPTH = MIN(KNTDO+KNTIF , MXDPTH) |
---|
1209 | IF (IDEPTH == 0 .AND. .NOT.BLNKFL) GO TO 9 |
---|
1210 | IF (ELSEBL) IDEPTH = IDEPTH-1 |
---|
1211 | IPNT = 1 |
---|
1212 | JPNT = 1 |
---|
1213 | 1 IF (MOD(IPNT , 66) == 1) THEN |
---|
1214 | IF (IPNT+65 > LEN) GO TO 9 |
---|
1215 | OUT(IPNT:IPNT+65) = ' ' |
---|
1216 | IPNT = IPNT+IDEPTH*ISHIFT |
---|
1217 | END IF |
---|
1218 | ! |
---|
1219 | ! Find first non-blank character |
---|
1220 | DO L2 = JPNT , LENST |
---|
1221 | IF (STAMNT(L2:L2) /= ' ') GO TO 3 |
---|
1222 | END DO |
---|
1223 | IF (JPNT == 1) THEN |
---|
1224 | SYNERR = .TRUE. |
---|
1225 | GO TO 9 |
---|
1226 | ELSE |
---|
1227 | GO TO 10 |
---|
1228 | END IF |
---|
1229 | ! |
---|
1230 | ! Find first multiple blank (but not in a character string) |
---|
1231 | 3 KNTAP = 0 |
---|
1232 | DO L3 = L2, LENST-1 |
---|
1233 | IF (STAMNT(L3:L3) == "'") KNTAP = 1-KNTAP |
---|
1234 | IF (STAMNT(L3:L3+1) == ' ') THEN |
---|
1235 | IF (KNTAP == 0) GO TO 5 |
---|
1236 | GO TO 9 |
---|
1237 | END IF |
---|
1238 | END DO |
---|
1239 | L3 = LENST |
---|
1240 | ! |
---|
1241 | ! Have section with no multiple blanks. This can be copied to OUT |
---|
1242 | ! if there is room on the current line. Otherwise cut the |
---|
1243 | ! section after the non-alphanumeric character nearest to the end of |
---|
1244 | ! the line, if one exists. |
---|
1245 | ! An apostrophe and period are considered to be alphanumeric |
---|
1246 | ! characters, in order to hold character strings, |
---|
1247 | ! and real and logical constants together; |
---|
1248 | ! underscores and dollars are so treated to handle common extensions, |
---|
1249 | ! and the ** and // operators and real literal constants are treated. |
---|
1250 | 5 KADD = 0 |
---|
1251 | IF (L3-L2 <= 66-MOD(IPNT , 66)) GO TO 8 |
---|
1252 | DO L4 = 66+L2-MOD(IPNT , 66) , L2 , -1 |
---|
1253 | IF (STAMNT(L4:L4) == ' ') GO TO 7 |
---|
1254 | IF (LGE(STAMNT(L4:L4) , 'A') .AND. LLE(STAMNT(L4:L4) , 'Z')) & |
---|
1255 | CYCLE |
---|
1256 | IF(LGE(STAMNT(L4:L4), '0') .AND. & |
---|
1257 | LLE(STAMNT(L4:L4), '9')) CYCLE |
---|
1258 | IF (STAMNT(L4:L4) == "'" .OR. & |
---|
1259 | STAMNT(L4:L4) == '_' .OR. STAMNT(L4:L4) == '$' .OR. & |
---|
1260 | STAMNT(L4:L4) == '.') CYCLE |
---|
1261 | IF (L4 /= LENST) THEN |
---|
1262 | IF (STAMNT(L4:L4+1) == '**' .OR. & |
---|
1263 | STAMNT(L4:L4+1) == '//' ) CYCLE |
---|
1264 | IF (L4 /= L2) THEN |
---|
1265 | IF(LGE(STAMNT(L4+1:L4+1), '0') .AND. & |
---|
1266 | LLE(STAMNT(L4+1:L4+1), '9')) THEN |
---|
1267 | IF (STAMNT(L4-1:L4) == 'E+' .OR. & |
---|
1268 | STAMNT(L4-1:L4) == 'e+' .OR. & |
---|
1269 | STAMNT(L4-1:L4) == 'E-' .OR. & |
---|
1270 | STAMNT(L4-1:L4) == 'e-' .OR. & |
---|
1271 | STAMNT(L4-1:L4) == 'D+' .OR. & |
---|
1272 | STAMNT(L4-1:L4) == 'd+' .OR. & |
---|
1273 | STAMNT(L4-1:L4) == 'D-' .OR. & |
---|
1274 | STAMNT(L4-1:L4) == 'd-' ) CYCLE |
---|
1275 | END IF |
---|
1276 | END IF |
---|
1277 | END IF |
---|
1278 | IF (LGE(STAMNT(L4:L4) , 'a') .AND. LLE(STAMNT(L4:L4) , 'z')) & |
---|
1279 | CYCLE |
---|
1280 | GO TO 7 |
---|
1281 | END DO |
---|
1282 | ! |
---|
1283 | ! No break character found |
---|
1284 | IF (BLNKFL) GO TO 9 |
---|
1285 | L4 = 66-MOD(IPNT , 66)+L2 |
---|
1286 | ! |
---|
1287 | ! Cut here |
---|
1288 | 7 L3 = L4 |
---|
1289 | KADD = 1 |
---|
1290 | 8 LOUT = IPNT+L3-L2 |
---|
1291 | IF (LOUT > LEN) GO TO 9 |
---|
1292 | OUT(IPNT:LOUT) = STAMNT(L2:L3) |
---|
1293 | IF (L3 == LENST) GO TO 10 |
---|
1294 | ! |
---|
1295 | ! Set pointers for next section of statement |
---|
1296 | IPNT = LOUT+1 |
---|
1297 | IF (KADD == 1 .AND. MOD(IPNT , 66) /= 1 .OR. MOD(IPNT , 66) & |
---|
1298 | >= 60) IPNT = ((IPNT+65)/66)*66+1 |
---|
1299 | IF (MOD(IPNT , 66) == 0) IPNT = IPNT+1 |
---|
1300 | JPNT = L3+1 |
---|
1301 | IF (KADD == 0) JPNT = JPNT+1 |
---|
1302 | GO TO 1 |
---|
1303 | ! |
---|
1304 | ! Copied statement (if adding 6 cols. to initial line would cause |
---|
1305 | ! total length to exceed 2640, must start it in col.1) |
---|
1306 | 9 LENST = LEN_TRIM(STAMNT(:LENST)) |
---|
1307 | IF (LENST > 66) THEN |
---|
1308 | AMP = '&' |
---|
1309 | ELSE |
---|
1310 | AMP = ' ' |
---|
1311 | END IF |
---|
1312 | IF (LABEL /= 0) THEN |
---|
1313 | WRITE (NOUT , 1003) LABEL , STAMNT(:MIN(LENST, 66)), AMP |
---|
1314 | ELSE |
---|
1315 | IF (LENST < LEN-6) THEN |
---|
1316 | WRITE (NOUT , 1004) STAMNT(:MIN(LENST,66)), AMP |
---|
1317 | ELSE |
---|
1318 | WRITE (NOUT , '(A,A1)') STAMNT(:MIN(LENST, 66)), AMP |
---|
1319 | END IF |
---|
1320 | END IF |
---|
1321 | IF (LENST > 66) WRITE (NOUT , 1005) & |
---|
1322 | &('&', STAMNT(66*L6-65:66*L6) , L6 = 2 , (LENST+65)/66) |
---|
1323 | GO TO 11 |
---|
1324 | ! |
---|
1325 | ! Write OUT to output unit |
---|
1326 | 10 LOUT = LEN_TRIM(OUT(:LOUT)) |
---|
1327 | IF (LOUT > 66) THEN |
---|
1328 | AMP = '&' |
---|
1329 | ELSE |
---|
1330 | AMP =' ' |
---|
1331 | END IF |
---|
1332 | IF (LABEL /= 0) THEN |
---|
1333 | WRITE (NOUT , 1003) LABEL , OUT(:MIN(LOUT, 66)), AMP |
---|
1334 | ELSE |
---|
1335 | WRITE (NOUT , 1004) OUT(:MIN(LOUT, 66)), AMP |
---|
1336 | END IF |
---|
1337 | ! |
---|
1338 | ! An & is required in col. 6 if statement has more than 2412 |
---|
1339 | ! characters, otherwise total length including cols. 1-6 will |
---|
1340 | ! exceed 2640. Also if making interface blocks, in order to be |
---|
1341 | ! compatible with both old and new source forms. |
---|
1342 | IF (LOUT > 66) THEN |
---|
1343 | IF (LOUT > LLIMIT .OR. INTFL) THEN |
---|
1344 | AMP = '&' |
---|
1345 | ELSE |
---|
1346 | AMP = ' ' |
---|
1347 | END IF |
---|
1348 | WRITE (NOUT , 1005) (AMP , OUT(66*L5-65:66*L5) , L5 = 2 , ( & |
---|
1349 | LOUT+65)/66) |
---|
1350 | END IF |
---|
1351 | ! |
---|
1352 | ! Write any comments following statement |
---|
1353 | 11 IF (KNTCOM /= 0) THEN |
---|
1354 | WRITE (NOUT ,'(A72)') (CBUF(72*L5-71:72*L5) , L5 = 1 , KNTCOM) |
---|
1355 | KNTCOM = 0 |
---|
1356 | END IF |
---|
1357 | ! |
---|
1358 | 1003 FORMAT(I5 , TR1, A, A) |
---|
1359 | 1004 FORMAT(TR6, A, A) |
---|
1360 | 1005 FORMAT(TR5 , A , A:'&' ) |
---|
1361 | ! |
---|
1362 | RETURN |
---|
1363 | END SUBROUTINE REFORM |
---|
1364 | SUBROUTINE SPECIAL(L3, NEXT, BUFFER, NKEY, KEYS, KEYSLC, & |
---|
1365 | LK, FOLLOW) |
---|
1366 | ! |
---|
1367 | ! Special treatment for peculiar Fortran syntax |
---|
1368 | ! |
---|
1369 | USE STRUCTURE |
---|
1370 | ! |
---|
1371 | USE STATISTICS |
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1372 | implicit none |
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1373 | ! |
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1374 | INTEGER, PARAMETER :: NUMLEN = 5 |
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1375 | ! |
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1376 | CHARACTER(LEN=*), INTENT(OUT) :: BUFFER |
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1377 | INTEGER, INTENT(IN) :: NKEY |
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1378 | INTEGER, INTENT(IN), dimension(:) :: LK |
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1379 | CHARACTER(LEN=*), INTENT(IN), dimension(:) :: KEYS, KEYSLC |
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1380 | CHARACTER(LEN=32) :: NAMEOF |
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1381 | CHARACTER(LEN=NUMLEN) :: NUMBER |
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1382 | ! |
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1383 | INTEGER, INTENT(IN OUT) :: L3, NEXT |
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1384 | LOGICAL, INTENT(IN), dimension(:) :: FOLLOW |
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1385 | LOGICAL :: IFASSIGN |
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1386 | integer :: ind, l20, istar, lparen, napos, ndigit,& |
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1387 | nparen, l10, ilp, isss, limit, name_length |
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1388 | ! |
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1389 | IFASSIGN = .FALSE. |
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1390 | ! |
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1391 | ! Deal with labelled DO WHILE |
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1392 | IF (L3 == 13) THEN |
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1393 | IND = index(STAMNT(:LENST), 'WHILE') |
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1394 | IF (IND == 0) IND = index(STAMNT(:LENST), 'while') |
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1395 | IF (IND /= 0) THEN |
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1396 | IF(LGE(STAMNT(IND-1:IND-1), '0') .AND. & |
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1397 | LLE(STAMNT(IND-1:IND-1), '9')) & |
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1398 | STAMNT(IND:IND+5) = ' WHILE' |
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1399 | END IF |
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1400 | GO TO 99 |
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1401 | END IF |
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1402 | ! |
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1403 | ! Deal with IMPLICIT with non-standard length specifiers |
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1404 | IF (L3 == 25) THEN |
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1405 | IF (index(STAMNT(:LENST), '*') /= 0) THEN |
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1406 | ! |
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1407 | ! first, CHARACTER*(len) |
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1408 | 11 IND = index(STAMNT(:LENST), 'CHARACTER * (') |
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1409 | IF (IND == 0) IND = index(STAMNT(:LENST),'character * (') |
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1410 | IF (IND /= 0) THEN |
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1411 | STAMNT(IND+10:IND+10) = ' ' |
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1412 | GO TO 11 |
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1413 | END IF |
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1414 | ! |
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1415 | ! then, type*nn |
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1416 | NPAREN = 0 |
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1417 | NAPOS = 0 |
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1418 | DO L10 = 15, LENST |
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1419 | IF (STAMNT(L10:L10) == "'") THEN |
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1420 | NAPOS = 1 - NAPOS |
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1421 | ELSE IF (STAMNT(L10:L10) == '(') THEN |
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1422 | IF (NAPOS == 0) NPAREN = NPAREN + 1 |
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1423 | ELSE IF (STAMNT(L10:L10) == ')') THEN |
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1424 | IF (NAPOS == 0) NPAREN = NPAREN - 1 |
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1425 | ELSE IF (STAMNT(L10:L10) == '*') THEN |
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1426 | IF (NPAREN == 0) THEN |
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1427 | STAMNT(L10:L10+1) = ' (' |
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1428 | ILP = index(STAMNT(L10+2:LENST), '(') |
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1429 | IF (ILP == 0) THEN |
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1430 | SYNERR = .TRUE. |
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1431 | GO TO 99 |
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1432 | ELSE |
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1433 | STAMNT(L10+ILP:L10+ILP) = ')' |
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1434 | END IF |
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1435 | IF (STAMNT(L10+1:L10+3) == '(4)') THEN |
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1436 | IF (STAMNT(L10-5:L10-5) /= 'C' .AND. & |
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1437 | STAMNT(L10-5:L10-5) /= 'c') & |
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1438 | STAMNT(L10+1:L10+3) = ' ' |
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1439 | ELSE IF (STAMNT(L10-2:L10+3) == 'X (8)' .OR. & |
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1440 | STAMNT(L10-2:L10+3) == 'x (8)')THEN |
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1441 | STAMNT(L10+1:L10+3) = ' ' |
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1442 | END IF |
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1443 | |
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1444 | END IF |
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1445 | END IF |
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1446 | END DO |
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1447 | END IF |
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1448 | GO TO 99 |
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1449 | END IF |
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1450 | ! |
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1451 | ! An ASSIGN label must be followed by a blank and a * specifier |
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1452 | ! converted to (...) |
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1453 | IF(L3 == 1 .AND. STAMNT(:7 ) == 'ASSIGN ' .OR. & |
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1454 | L3 == 5 .AND. STAMNT(:11) == 'CHARACTER *' .OR. & |
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1455 | L3 == 8 .AND. STAMNT(:9 ) == 'COMPLEX *' .OR. & |
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1456 | L3 == 27.AND. STAMNT(:9 ) == 'INTEGER *' .OR. & |
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1457 | L3 == 29.AND. STAMNT(:9 ) == 'LOGICAL *' .OR. & |
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1458 | L3 == 36.AND. STAMNT(:6 ) == 'REAL *' ) THEN |
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1459 | IF (L3 < 8) THEN |
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1460 | ISSS = L3+7 |
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1461 | ELSE IF (L3 < 30) THEN |
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1462 | ISSS = 10 |
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1463 | ELSE |
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1464 | ISSS = 7 |
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1465 | END IF |
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1466 | ! |
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1467 | ! Extract the length parameter |
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1468 | NDIGIT = 1 |
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1469 | NUMBER = ' ' |
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1470 | DO L20 = ISSS, LENST |
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1471 | IF(STAMNT(L20:L20) == ' ') CYCLE |
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1472 | NUMBER(:1) = STAMNT(L20:L20) |
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1473 | IF(LGE(STAMNT(L20:L20),'0') .AND. LLE(STAMNT(L20:L20),'9') & |
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1474 | ) GO TO 21 |
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1475 | GO TO 1 |
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1476 | END DO |
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1477 | SYNERR = .TRUE. |
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1478 | GO TO 99 |
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1479 | 21 DO NEXT = L20+1, LENST |
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1480 | IF(STAMNT(NEXT:NEXT) == ' ') CYCLE |
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1481 | IF(LLT(STAMNT(NEXT:NEXT), '0') .OR. LGT(STAMNT(NEXT:NEXT), & |
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1482 | '9')) GO TO 19 |
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1483 | NDIGIT = NDIGIT + 1 |
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1484 | IF (NDIGIT > NUMLEN) THEN |
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1485 | SYNERR = .TRUE. |
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1486 | GO TO 99 |
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1487 | END IF |
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1488 | NUMBER(NDIGIT:NDIGIT) = STAMNT(NEXT:NEXT) |
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1489 | END DO |
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1490 | SYNERR = .TRUE. |
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1491 | GO TO 99 |
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1492 | END IF |
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1493 | GO TO 1 |
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1494 | ! |
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1495 | ! Insert the blank or parentheses |
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1496 | 19 IF (LENST >= LEN-1) THEN |
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1497 | OVFLW = .TRUE. |
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1498 | GO TO 99 |
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1499 | END IF |
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1500 | BUFFER(NEXT:LENST) = STAMNT(NEXT:LENST) |
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1501 | IF (L3 == 1) THEN |
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1502 | LENST = LENST+2 |
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1503 | STAMNT(NEXT:NEXT+3) = ' TO ' |
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1504 | STAMNT(NEXT+4:LENST) = BUFFER(NEXT+2:LENST-2) |
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1505 | ELSE |
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1506 | LENST = LENST+1 |
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1507 | STAMNT(NEXT:NEXT) = ' ' |
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1508 | STAMNT(NEXT+1:LENST) = BUFFER(NEXT:LENST-1) |
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1509 | IF (L3 /= 5.AND. NDIGIT == 1 .AND. NUMBER(:1) == '4') THEN |
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1510 | STAMNT(NEXT-4:NEXT-1) = ' ' |
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1511 | ELSE IF (L3 == 8.AND.NDIGIT == 1 .AND. NUMBER(:1) == '8') & |
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1512 | THEN |
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1513 | STAMNT(NEXT-4:NEXT-1) = ' ' |
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1514 | ELSE |
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1515 | STAMNT(NEXT-3-NDIGIT:NEXT-1) = '('//NUMBER(:NDIGIT)//')' |
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1516 | END IF |
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1517 | END IF |
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1518 | GO TO 2 |
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1519 | ! |
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1520 | ! Handle (*) case |
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1521 | 1 IF(L3 == 5 .AND. STAMNT(:18) == 'CHARACTER * ( * )') THEN |
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1522 | NEXT = 19 |
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1523 | STAMNT(11:11) = ' ' |
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1524 | END IF |
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1525 | ! |
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1526 | ! IF statement may be followed by a keyword |
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1527 | 2 IF (L3 == 24 ) THEN |
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1528 | LPAREN = 1 |
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1529 | NAPOS = 0 |
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1530 | DO NEXT = 5, LENST |
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1531 | IF (STAMNT(NEXT:NEXT) == "'") NAPOS = 1 - NAPOS |
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1532 | IF (NAPOS == 1) CYCLE |
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1533 | IF (STAMNT(NEXT:NEXT) == '(' ) LPAREN = LPAREN+1 |
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1534 | IF (STAMNT(NEXT:NEXT) == ')' ) LPAREN = LPAREN-1 |
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1535 | IF (LPAREN == 0) GO TO 5 |
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1536 | END DO |
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1537 | GO TO 99 |
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1538 | 5 NEXT = NEXT+1 |
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1539 | DO L3 = 1, NKEY |
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1540 | IF (FOLLOW(L3) .AND.(STAMNT(NEXT+1:NEXT+LK(L3)) == KEYS(L3)& |
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1541 | .OR. STAMNT(NEXT+1:NEXT+LK(L3)) == KEYSLC(L3)& |
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1542 | )) THEN |
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1543 | NEXT = NEXT+LK(L3)+1 |
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1544 | IF(L3 == 1) IFASSIGN = .TRUE. |
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1545 | GO TO 9 |
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1546 | END IF |
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1547 | END DO |
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1548 | ELSE |
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1549 | ! |
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1550 | ! Typed function |
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1551 | IF(STAMNT(NEXT+1:NEXT+8) == 'FUNCTION' .OR. & |
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1552 | STAMNT(NEXT+1:NEXT+8) == 'function') THEN |
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1553 | NEXT = NEXT+9 |
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1554 | call name_of(nameof, stamnt(next:lenst), name_length) |
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1555 | NAME = 'FUNCTION'//NAMEOF(:name_length) |
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1556 | L3 = 22 |
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1557 | ! |
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1558 | ! Deal with any * |
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1559 | LIMIT = index(STAMNT(:LENST), '(') |
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1560 | IF (LIMIT /= 0) THEN |
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1561 | ISTAR = index(STAMNT(:LIMIT), '*') |
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1562 | IF (ISTAR /= 0) THEN |
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1563 | NDIGIT = LIMIT - ISTAR -3 |
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1564 | IF (NDIGIT > NUMLEN) THEN |
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1565 | SYNERR = .TRUE. |
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1566 | GO TO 99 |
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1567 | END IF |
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1568 | NUMBER(:NDIGIT) = STAMNT(ISTAR+2:LIMIT-2) |
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1569 | STAMNT(NEXT-5+NDIGIT:LIMIT-2) = & |
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1570 | 'FUNCTION'//NAME(10:ISTAR-NEXT+8) |
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1571 | STAMNT(NEXT-8:NEXT-6+NDIGIT) = & |
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1572 | '('//NUMBER(:NDIGIT)//') ' |
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1573 | IF (NDIGIT == 1 .AND. NUMBER(:1) == '4') THEN |
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1574 | STAMNT(NEXT-8:NEXT-5) = ' ' |
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1575 | ELSE IF (NDIGIT == 1 .AND. NUMBER(:1) == '8'.AND.& |
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1576 | (STAMNT(7:7) == 'X'.OR.STAMNT(7:7) == 'x')) THEN |
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1577 | STAMNT(NEXT-8:NEXT-5) = ' ' |
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1578 | END IF |
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1579 | NEXT = NEXT + 3 + NDIGIT |
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1580 | END IF |
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1581 | ELSE |
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1582 | SYNERR = .TRUE. |
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1583 | GO TO 99 |
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1584 | END IF |
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1585 | GO TO 9 |
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1586 | END IF |
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1587 | END IF |
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1588 | GO TO 99 |
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1589 | ! |
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1590 | ! Insert the blank |
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1591 | 9 IF (LENST >= LEN-2) THEN |
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1592 | OVFLW = .TRUE. |
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1593 | GO TO 99 |
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1594 | END IF |
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1595 | BUFFER(NEXT:LENST) = STAMNT(NEXT:LENST) |
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1596 | LENST = LENST+1 |
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1597 | STAMNT(NEXT:NEXT) = ' ' |
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1598 | STAMNT(NEXT+1:LENST) = BUFFER(NEXT:LENST-1) |
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1599 | ! |
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1600 | ! ASSIGN may follow IF |
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1601 | IF(.NOT.IFASSIGN) GO TO 99 |
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1602 | NEXT = index(STAMNT(:LENST), 'TO') |
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1603 | IF (NEXT == 0) NEXT = index(STAMNT(:LENST), 'to') |
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1604 | IF(NEXT == 0) THEN |
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1605 | SYNERR = .TRUE. |
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1606 | GO TO 99 |
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1607 | ELSE |
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1608 | LENST = LENST+2 |
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1609 | STAMNT(NEXT:NEXT+3) = ' TO ' |
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1610 | STAMNT(NEXT+4:LENST) = BUFFER(NEXT+1:LENST-3) |
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1611 | END IF |
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1612 | 99 RETURN |
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1613 | END SUBROUTINE SPECIAL |
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1614 | SUBROUTINE START( ) |
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1615 | ! |
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1616 | ! To prepare for PROGRAM_UNITS |
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1617 | ! |
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1618 | USE DATA |
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1619 | implicit none |
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1620 | CHARACTER(LEN=16) :: NAME |
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1621 | ! |
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1622 | ! Prompt for interactive use |
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1623 | WRITE (*,'(" Type name of file, shift, max. indent level, T or F & |
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1624 | &for blank treatment,",/ " T or F for interface blocks only.")') |
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1625 | WRITE (*,'(" For simple use type only the name of the file ", & |
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1626 | &"followed by a slash (/) and RETURN.",/ & |
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1627 | &" Note that the name should be given WITHOUT extension!")') |
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1628 | ! |
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1629 | ! Does standard input unit contain an input record |
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1630 | NIN = 11 |
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1631 | NOUT = 12 |
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1632 | ISHIFT = 0 |
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1633 | MXDPTH = 0 |
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1634 | BLANKS = .FALSE. |
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1635 | INTBFL = .FALSE. |
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1636 | READ (* , * , END = 1 , ERR = 1) NAME, ISHIFT , MXDPTH , & |
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1637 | BLANKS, INTBFL |
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1638 | ! |
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1639 | ! If record present, check input values are reasonable |
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1640 | ISHIFT = MIN(MAX(ISHIFT , 0) , 10) |
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1641 | MXDPTH = MIN(MAX(MXDPTH , 0) , 36/MAX(ISHIFT,1)) |
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1642 | IF (INTBFL.AND..NOT.BLANKS) WRITE (*, '('' Interface block proces& |
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1643 | &sing cancelled as blank processing not requested'')') |
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1644 | INTBFL = BLANKS.AND.INTBFL |
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1645 | GO TO 2 |
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1646 | ! |
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1647 | ! Set default values |
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1648 | 1 ISHIFT = 3 |
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1649 | MXDPTH = 10 |
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1650 | BLANKS = .TRUE. |
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1651 | INTBFL = .FALSE. |
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1652 | NAME = 'name' |
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1653 | 2 OPEN (UNIT=NIN, FILE=TRIM(NAME)//'.f', ACTION='READ') |
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1654 | OPEN (UNIT=NOUT, FILE=TRIM(NAME)//'.f90', ACTION='WRITE') |
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1655 | ! |
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1656 | ! Print values to be used |
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1657 | Write (*,'(" Loop bodies will be indented by",I3/ & |
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1658 | & " Maximum indenting level is ",I3)') & |
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1659 | ISHIFT , MXDPTH |
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1660 | IF (BLANKS) WRITE (*, & |
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1661 | '(" Significant blank proccessing requested")') |
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1662 | IF (INTBFL) WRITE (*, & |
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1663 | '('' Only interface blocks will be produced'')') |
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1664 | IF (INTBFL) WRITE (NOUT, '(6X, ''INTERFACE'')') |
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1665 | ! |
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1666 | CALL SYSTEM_CLOCK(TIME0) |
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1667 | RETURN |
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1668 | END SUBROUTINE START |
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1669 | SUBROUTINE TERMINATE( ) |
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1670 | ! |
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1671 | ! To print the final summary |
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1672 | ! |
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1673 | USE STATISTICS |
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1674 | USE DATA |
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1675 | implicit none |
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1676 | ! |
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1677 | integer :: itick, itime |
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1678 | ! |
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1679 | CALL SYSTEM_CLOCK(ITIME, ITICK) |
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1680 | IF (ITICK /= 0) & |
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1681 | WRITE (*,'(" Processing complete in ", F7.3, " seconds")') & |
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1682 | REAL(ITIME-TIME0)/REAL(ITICK) |
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1683 | WRITE (*,'(" Maximum depth of DO-loop nesting ",I3/ & |
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1684 | & " Maximum depth of IF-block nesting",I3/ & |
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1685 | &" No. of lines read ",I17/" No. of program units read ",I8/ & |
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1686 | & " Global syntax error flag",L12)') & |
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1687 | MXDO , MXIF , KARD , KNTPU , SYNTAX |
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1688 | ! |
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1689 | IF (OVFLW) WRITE(*, '(" At least one statement was too long to h& |
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1690 | &ave a necessary blank added")') |
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1691 | IF (NONSTD) WRITE (*, '(" At least one statement began with a no& |
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1692 | &n-standard keyword")') |
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1693 | ! |
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1694 | RETURN |
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1695 | END SUBROUTINE TERMINATE |
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1696 | END MODULE ALL_PROCEDURES |
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1697 | PROGRAM CONVERT |
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1698 | USE ALL_PROCEDURES |
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1699 | implicit none |
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1700 | ! |
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1701 | ! Initialize |
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1702 | CALL START( ) |
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1703 | ! |
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1704 | ! Process the lines of program units |
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1705 | CALL PROGRAM_UNITS( ) |
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1706 | ! |
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1707 | ! Print some statistics |
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1708 | CALL TERMINATE( ) |
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1709 | STOP |
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1710 | END PROGRAM CONVERT |
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