| 1 |
//$Header$ |
| 2 |
//------------------------------------------------------------------------------------------------- |
| 3 |
//Copyright (c) 2018, David T. Ashley |
| 4 |
// |
| 5 |
//This file is part of "ifsfscan", a program for identifying gross formatting anomalies in source |
| 6 |
//files (Windows/ASCII text files only). |
| 7 |
// |
| 8 |
//This source code and any program in which it is compiled/used is licensed under the MIT License, |
| 9 |
//reproduced below. |
| 10 |
// |
| 11 |
//Permission is hereby granted, free of charge, to any person obtaining a copy of |
| 12 |
//this software and associated documentation files(the "Software"), to deal in the |
| 13 |
//Software without restriction, including without limitation the rights to use, |
| 14 |
//copy, modify, merge, publish, distribute, sublicense, and / or sell copies of the |
| 15 |
//Software, and to permit persons to whom the Software is furnished to do so, |
| 16 |
//subject to the following conditions : |
| 17 |
// |
| 18 |
//The above copyright notice and this permission notice shall be included in all |
| 19 |
//copies or substantial portions of the Software. |
| 20 |
// |
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 22 |
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 23 |
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 24 |
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 25 |
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 26 |
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 27 |
//SOFTWARE. |
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//------------------------------------------------------------------------------------------------- |
| 29 |
#include <stdio.h> |
| 30 |
#include <stdlib.h> |
| 31 |
#include <string.h> |
| 32 |
#include <time.h> |
| 33 |
|
| 34 |
#define FCMIOF_HORIZONTAL_BAR_SEP_CHAR ('-') |
| 35 |
#define FCMIOF_LINE_LEN (78) |
| 36 |
|
| 37 |
//The last column allowed for a characters below is Column 82 (or it will be |
| 38 |
//less than aesthetic). |
| 39 |
const char * const license_preamble[] = |
| 40 |
{ |
| 41 |
"ifsfscan, (c) 2018 David T. Ashley (dashley@gmail.com)", |
| 42 |
"This program's source files, executable files, and all other related files", |
| 43 |
"(such as Visual Studio project files) are licensed under \"The MIT License\",", |
| 44 |
"reproduced below." |
| 45 |
}; |
| 46 |
|
| 47 |
const char * const license_text[] = |
| 48 |
{ |
| 49 |
"Permission is hereby granted, free of charge, to any person obtaining a copy", |
| 50 |
"of this software and associated documentation files(the \"Software\"), to deal", |
| 51 |
"in the Software without restriction, including without limitation the rights", |
| 52 |
"to use, copy, modify, merge, publish, distribute, sublicense, and / or sell", |
| 53 |
"copies of the Software, and to permit persons to whom the Software is", |
| 54 |
"furnished to do so, subject to the following conditions:", |
| 55 |
"", |
| 56 |
"The above copyright notice and this permission notice shall be included in", |
| 57 |
"all copies or substantial portions of the Software.", |
| 58 |
"", |
| 59 |
"THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR", |
| 60 |
"IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,", |
| 61 |
"FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE", |
| 62 |
"AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER", |
| 63 |
"LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,", |
| 64 |
"OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE", |
| 65 |
"SOFTWARE." |
| 66 |
}; |
| 67 |
|
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const char * const prog_desc_text[] = |
| 69 |
{ |
| 70 |
"ifsfscan (mnemonic: Ill-Formed Source File SCAN) is a program for detecting", |
| 71 |
"gross formatting errors in source files (Windows/ASCII text files only). The", |
| 72 |
"errors detected are non-ASCII characters, tab characters, abnormal", |
| 73 |
"end-of-line characters, and trailing whitespace on lines.", |
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}; |
| 75 |
|
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const char * const prog_help_text[] = |
| 77 |
{ |
| 78 |
"Usage: ifsfscan [filename_or_wildcard [filename_or_wildcard [...]]]", |
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"", |
| 80 |
"Notes:", |
| 81 |
" (1) : Wildcards (\"*\", \"?\") are processed by Windows, so Windows is", |
| 82 |
" the arbiter of which wildcards are accepted and how they expand.", |
| 83 |
" (2) : This program never writes to a file, so it cannot destroy data", |
| 84 |
" (except, possibly, by stdout output redirected to a file).", |
| 85 |
" (3) : This program accepts no options (like \"-help\" or \"-verbose\").", |
| 86 |
" (4) : This program accepts only Windows line endings (13-10).", |
| 87 |
" This program is incompatible with *nix and *nix files.", |
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" (5) : This program accepts only the ASCII character set (it will not", |
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" process UTF-8 or any other encodings).", |
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}; |
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|
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//-------------------------------------------------------------------------------- |
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// T E R M I N A T I O N F U N C T I O N S |
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//-------------------------------------------------------------------------------- |
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void CCMFATAL_fatal(const char *desc, const char *file, size_t line) |
| 96 |
{ |
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printf("\n"); |
| 98 |
printf("Fatal error. Must terminate execution.\n"); |
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printf("File: %s, Line: %zu.\n", file, line); |
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printf("Error description: %s\n", desc); |
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exit(4); //Error code 4 for error termination. |
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} |
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|
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//-------------------------------------------------------------------------------- |
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// A S S E R T I O N F U N C T I O N S |
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//-------------------------------------------------------------------------------- |
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void USERASSERT_assert(int assertion, const char *file, size_t line) |
| 108 |
{ |
| 109 |
if (! assertion) |
| 110 |
{ |
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printf("\n"); |
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printf("Assertion failed. It is necessary to use the source code to diagnose\n"); |
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printf("and resolve this error.\n"); |
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printf("File: %s, Line: %zu.\n", file, line); |
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exit(4); //Error code 4 for error termination. |
| 116 |
} |
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} |
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|
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//-------------------------------------------------------------------------------- |
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// M E M O R Y A L L O C A T I O N F U N C T I O N S |
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//-------------------------------------------------------------------------------- |
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//These functions form a layer over the standard library so that conditions of |
| 123 |
//concern can be more easily trapped. |
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//-------------------------------------------------------------------------------- |
| 125 |
void *CCMALLOC_malloc(size_t size) |
| 126 |
{ |
| 127 |
void *rv; |
| 128 |
|
| 129 |
rv = malloc(size); |
| 130 |
|
| 131 |
if (!rv) |
| 132 |
{ |
| 133 |
CCMFATAL_fatal("NULL pointer from malloc()--probable out of memory.", |
| 134 |
__FILE__, |
| 135 |
__LINE__); |
| 136 |
} |
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|
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memset(rv, 0, size); |
| 139 |
|
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return(rv); |
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} |
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|
| 143 |
void *CCMALLOC_calloc(size_t num, size_t size) |
| 144 |
{ |
| 145 |
void *rv; |
| 146 |
|
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rv = calloc(num, size); |
| 148 |
|
| 149 |
if (!rv) |
| 150 |
{ |
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CCMFATAL_fatal("NULL pointer from calloc()--probable out of memory.", |
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__FILE__, |
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__LINE__); |
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} |
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|
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memset(rv, 0, size); |
| 157 |
|
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return(rv); |
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} |
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|
| 161 |
void *CCMALLOC_realloc(void *memblock, size_t size) |
| 162 |
{ |
| 163 |
void *rv; |
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|
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rv = realloc(memblock, size); |
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|
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if ((!rv) && (size)) |
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{ |
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CCMFATAL_fatal("NULL pointer from realloc()--probable out of memory.", |
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__FILE__, |
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__LINE__); |
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} |
| 173 |
|
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return(rv); |
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} |
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|
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|
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void CCMALLOC_free(void *memblock) |
| 179 |
{ |
| 180 |
free(memblock); |
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} |
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|
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//-------------------------------------------------------------------------------- |
| 184 |
// C H A R A C T E R F U N C T I O N S |
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//-------------------------------------------------------------------------------- |
| 186 |
int CHARFUNC_digit_to_val(char digit) |
| 187 |
{ |
| 188 |
switch (digit) |
| 189 |
{ |
| 190 |
case '0': return(0); |
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break; |
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case '1': return(1); |
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break; |
| 194 |
case '2': return(2); |
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break; |
| 196 |
case '3': return(3); |
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break; |
| 198 |
case '4': return(4); |
| 199 |
break; |
| 200 |
case '5': return(5); |
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break; |
| 202 |
case '6': return(6); |
| 203 |
break; |
| 204 |
case '7': return(7); |
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break; |
| 206 |
case '8': return(8); |
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break; |
| 208 |
case '9': return(9); |
| 209 |
break; |
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default: return(-1); |
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break; |
| 212 |
} |
| 213 |
} |
| 214 |
|
| 215 |
char CHARFUNC_nibble_to_lc_hex_digit(int nibble) |
| 216 |
{ |
| 217 |
switch (nibble & 0x0F) |
| 218 |
{ |
| 219 |
case 0: |
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return('0'); |
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break; |
| 222 |
case 1: |
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return('1'); |
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break; |
| 225 |
case 2: |
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return('2'); |
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break; |
| 228 |
case 3: |
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return('3'); |
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break; |
| 231 |
case 4: |
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return('4'); |
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break; |
| 234 |
case 5: |
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return('5'); |
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break; |
| 237 |
case 6: |
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return('6'); |
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break; |
| 240 |
case 7: |
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return('7'); |
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break; |
| 243 |
case 8: |
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return('8'); |
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break; |
| 246 |
case 9: |
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return('9'); |
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break; |
| 249 |
case 10: |
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return('a'); |
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break; |
| 252 |
case 11: |
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return('b'); |
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break; |
| 255 |
case 12: |
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return('c'); |
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break; |
| 258 |
case 13: |
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return('d'); |
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break; |
| 261 |
case 14: |
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return('e'); |
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break; |
| 264 |
case 15: |
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return('f'); |
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break; |
| 267 |
default: |
| 268 |
USERASSERT_assert(0, __FILE__, __LINE__); |
| 269 |
return('?'); |
| 270 |
break; |
| 271 |
} |
| 272 |
} |
| 273 |
|
| 274 |
void CHARFUNC_int_to_lc_hex_rev(int arg, char *s) |
| 275 |
{ |
| 276 |
int i; |
| 277 |
|
| 278 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 279 |
|
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for (i = 0; i<8; i++) |
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{ |
| 282 |
s[i] = CHARFUNC_nibble_to_lc_hex_digit(arg); |
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arg >>= 4; |
| 284 |
} |
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} |
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|
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//-------------------------------------------------------------------------------- |
| 288 |
// S T R I N G A N D C H A R A C T E R A R R A Y F U N C T I O N S |
| 289 |
//-------------------------------------------------------------------------------- |
| 290 |
int STRING_contains_wildcard(const char *s) |
| 291 |
{ |
| 292 |
if (strchr(s, '?') != NULL) |
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return(1); |
| 294 |
else if (strchr(s, '*') != NULL) |
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return(1); |
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else |
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return(0); |
| 298 |
} |
| 299 |
|
| 300 |
int STRING_is_longer_than_maxpath(const char *s) |
| 301 |
{ |
| 302 |
if (_MAX_PATH <= 5) |
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return(1); |
| 304 |
else if (strlen(s) > (_MAX_PATH - 5)) |
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return(1); |
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else |
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return(0); |
| 308 |
} |
| 309 |
|
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int STRING_contains_terminating_backslash(const char *s) |
| 311 |
{ |
| 312 |
size_t i; |
| 313 |
|
| 314 |
i = strlen(s); |
| 315 |
|
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if (i == 0) |
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{ |
| 318 |
return(0); |
| 319 |
} |
| 320 |
else |
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{ |
| 322 |
do |
| 323 |
{ |
| 324 |
i--; |
| 325 |
if (s[i] == '\\') |
| 326 |
return(1); |
| 327 |
else if ((s[i] != ' ') && (s[i] != '\t')) |
| 328 |
return(0); |
| 329 |
} while (i != 0); |
| 330 |
return(0); |
| 331 |
} |
| 332 |
} |
| 333 |
|
| 334 |
const char *STRING_vcinfo(size_t which) |
| 335 |
{ |
| 336 |
static const char * const vcinfo[] = |
| 337 |
{ |
| 338 |
"$Author$", |
| 339 |
"$Date$", |
| 340 |
"$Header$", |
| 341 |
"$HeadURL$", |
| 342 |
"$ID$", |
| 343 |
"$Revision$", |
| 344 |
"$URL$", |
| 345 |
}; |
| 346 |
|
| 347 |
} |
| 348 |
|
| 349 |
//-------------------------------------------------------------------------------- |
| 350 |
// F O R M A T T E D O U T P U T F U N C T I O N S |
| 351 |
//-------------------------------------------------------------------------------- |
| 352 |
int FCMIOF_get_line_len(void) |
| 353 |
{ |
| 354 |
return(FCMIOF_LINE_LEN); |
| 355 |
} |
| 356 |
|
| 357 |
void FCMIOF_stream_repchar(FILE *s, char c, unsigned n) |
| 358 |
{ |
| 359 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 360 |
|
| 361 |
while (n--) |
| 362 |
fprintf(s, "%c", c); |
| 363 |
} |
| 364 |
|
| 365 |
void FCMIOF_repchar(char c, unsigned n) |
| 366 |
{ |
| 367 |
while (n--) |
| 368 |
printf("%c", c); |
| 369 |
} |
| 370 |
|
| 371 |
void FCMIOF_hline(void) |
| 372 |
{ |
| 373 |
FCMIOF_repchar(FCMIOF_HORIZONTAL_BAR_SEP_CHAR, FCMIOF_LINE_LEN); |
| 374 |
printf("\n"); |
| 375 |
} |
| 376 |
|
| 377 |
void FCMIOF_stream_hline(FILE *s) |
| 378 |
{ |
| 379 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 380 |
|
| 381 |
FCMIOF_stream_repchar(s, FCMIOF_HORIZONTAL_BAR_SEP_CHAR, FCMIOF_LINE_LEN); |
| 382 |
fprintf(s, "\n"); |
| 383 |
} |
| 384 |
|
| 385 |
void FCMIOF_stream_bannerheading(FILE *f, |
| 386 |
char *s, |
| 387 |
int n_extra_lines) |
| 388 |
{ |
| 389 |
const int lr_padding = 3; |
| 390 |
/* The number of spaces on each side of what is printed. |
| 391 |
*/ |
| 392 |
int i; |
| 393 |
/* General iteration variable. |
| 394 |
*/ |
| 395 |
|
| 396 |
int n_asterisks; |
| 397 |
int input_arg_len; |
| 398 |
int n_left_spaces; |
| 399 |
int n_right_spaces; |
| 400 |
|
| 401 |
/* Check the file pointer, string pointer, and other par. |
| 402 |
*/ |
| 403 |
USERASSERT_assert(f != NULL, __FILE__, __LINE__); |
| 404 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 405 |
USERASSERT_assert(n_extra_lines >= 0, __FILE__, __LINE__); |
| 406 |
|
| 407 |
/* Print the right number of solid lines of asterisks to the |
| 408 |
** standard output. |
| 409 |
*/ |
| 410 |
for (i = 0; i<n_extra_lines; i++) |
| 411 |
{ |
| 412 |
FCMIOF_stream_repchar(f, '*', FCMIOF_LINE_LEN); |
| 413 |
fprintf(f, "\n"); |
| 414 |
} |
| 415 |
|
| 416 |
/* Figure out how many asterisks to print on each side of the |
| 417 |
** argument, and how many spaces. We also need to figure out |
| 418 |
** how many characters of the input argument to print--if there |
| 419 |
** are too many characters, we need to truncate. |
| 420 |
*/ |
| 421 |
input_arg_len = strlen(s); |
| 422 |
if (input_arg_len > (FCMIOF_LINE_LEN - 2 * lr_padding - 2)) |
| 423 |
input_arg_len = FCMIOF_LINE_LEN - 2 * lr_padding - 2; |
| 424 |
|
| 425 |
n_asterisks = (FCMIOF_LINE_LEN - 2 * lr_padding - input_arg_len) / 2; |
| 426 |
|
| 427 |
n_left_spaces = lr_padding; |
| 428 |
|
| 429 |
if ((FCMIOF_LINE_LEN - 2 * lr_padding - input_arg_len) % 2) |
| 430 |
{ |
| 431 |
/* Odd, need to pad the right by one. */ |
| 432 |
n_right_spaces = lr_padding + 1; |
| 433 |
} |
| 434 |
else |
| 435 |
{ |
| 436 |
n_right_spaces = lr_padding; |
| 437 |
} |
| 438 |
|
| 439 |
/* Print the text. */ |
| 440 |
FCMIOF_stream_repchar(f, '*', n_asterisks); |
| 441 |
FCMIOF_stream_repchar(f, ' ', n_left_spaces); |
| 442 |
for (i = 0; i<input_arg_len; i++) |
| 443 |
fprintf(f, "%c", s[i]); |
| 444 |
FCMIOF_stream_repchar(f, ' ', n_right_spaces); |
| 445 |
FCMIOF_stream_repchar(f, '*', n_asterisks); |
| 446 |
fprintf(f, "\n"); |
| 447 |
|
| 448 |
/* Print the right number of solid lines of asterisks to the |
| 449 |
** standard output. |
| 450 |
*/ |
| 451 |
for (i = 0; i<n_extra_lines; i++) |
| 452 |
{ |
| 453 |
FCMIOF_stream_repchar(f, '*', FCMIOF_LINE_LEN); |
| 454 |
fprintf(f, "\n"); |
| 455 |
} |
| 456 |
} |
| 457 |
|
| 458 |
void FCMIOF_bannerheading(char *s, int n_extra_lines) |
| 459 |
{ |
| 460 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 461 |
USERASSERT_assert(n_extra_lines >= 0, __FILE__, __LINE__); |
| 462 |
|
| 463 |
FCMIOF_stream_bannerheading(stdout, s, n_extra_lines); |
| 464 |
} |
| 465 |
|
| 466 |
void FCMIOF_time_stream(FILE *s, time_t ltime) |
| 467 |
{ |
| 468 |
char *p; |
| 469 |
|
| 470 |
USERASSERT_assert(s != NULL, __FILE__, __LINE__); |
| 471 |
|
| 472 |
time(<ime); |
| 473 |
|
| 474 |
p = ctime(<ime); |
| 475 |
|
| 476 |
if (p) |
| 477 |
{ |
| 478 |
int i; |
| 479 |
|
| 480 |
for (i = 11; i<19; i++) |
| 481 |
fprintf(s, "%c", p[i]); |
| 482 |
fprintf(s, " "); |
| 483 |
for (i = 0; i<10; i++) |
| 484 |
fprintf(s, "%c", p[i]); |
| 485 |
fprintf(s, " "); |
| 486 |
for (i = 20; i<24; i++) |
| 487 |
fprintf(s, "%c", p[i]); |
| 488 |
} |
| 489 |
else |
| 490 |
{ |
| 491 |
fprintf(s, "??? ??? ?? ??:??:?? ????"); |
| 492 |
} |
| 493 |
} |
| 494 |
|
| 495 |
void process_filename_or_wildcard(const char *fname_or_wildcard) |
| 496 |
{ |
| 497 |
//Incoming pointer is worthy of an assertion. The OS should not every deliver |
| 498 |
//a NULL pointer or empty string to us. |
| 499 |
USERASSERT_assert(fname_or_wildcard != NULL, __FILE__, __LINE__); |
| 500 |
USERASSERT_assert(strlen(fname_or_wildcard) > 0, __FILE__, __LINE__); |
| 501 |
|
| 502 |
} |
| 503 |
|
| 504 |
void emit_no_par_documentation(void) |
| 505 |
{ |
| 506 |
size_t i; |
| 507 |
|
| 508 |
FCMIOF_stream_hline(stdout); |
| 509 |
for (i = 0; i < (sizeof(prog_desc_text) / sizeof(prog_desc_text[0])); i++) |
| 510 |
printf("%s\n", prog_desc_text[i]); |
| 511 |
FCMIOF_stream_hline(stdout); |
| 512 |
for (i = 0; i < (sizeof(license_preamble) / sizeof(license_preamble[0])); i++) |
| 513 |
printf("%s\n", license_preamble[i]); |
| 514 |
FCMIOF_stream_hline(stdout); |
| 515 |
for (i = 0; i < (sizeof(license_text) / sizeof(license_text[0])); i++) |
| 516 |
printf("%s\n", license_text[i]); |
| 517 |
FCMIOF_stream_hline(stdout); |
| 518 |
for (i = 0; i < (sizeof(prog_help_text) / sizeof(prog_help_text[0])); i++) |
| 519 |
printf("%s\n", prog_help_text[i]); |
| 520 |
FCMIOF_stream_hline(stdout); |
| 521 |
} |
| 522 |
|
| 523 |
void emit_execution_preamble(void) |
| 524 |
{ |
| 525 |
FCMIOF_stream_hline(stdout); |
| 526 |
printf("Use \"ifsfscan\" with no parameters to obtain license and help information.\n"); |
| 527 |
FCMIOF_stream_hline(stdout); |
| 528 |
} |
| 529 |
|
| 530 |
int c_main(int argc, char **argv) |
| 531 |
{ |
| 532 |
int i; |
| 533 |
|
| 534 |
if (argc <= 1) |
| 535 |
{ |
| 536 |
//This is most likely someone trying to figure out what the program is or does. |
| 537 |
//Spit everything. |
| 538 |
emit_no_par_documentation(); |
| 539 |
} |
| 540 |
else |
| 541 |
{ |
| 542 |
emit_execution_preamble(); |
| 543 |
|
| 544 |
//Every argument beyond the program name has to be either a file name or |
| 545 |
//wildcard. Just process them in order. |
| 546 |
for (i = 1; i < argc; i++) |
| 547 |
process_filename_or_wildcard(argv[i]); |
| 548 |
|
| 549 |
FCMIOF_stream_hline(stdout); |
| 550 |
} |
| 551 |
|
| 552 |
return 0; |
| 553 |
} |
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