summaryrefslogtreecommitdiff
path: root/Build/source/utils/m-tx/mtx-src/utility.c
blob: b44c07b555580ca520c3cf4f9e717d61a0c9723e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
/* Output from p2c 1.21alpha-07.Dec.93, the Pascal-to-C translator */
/* From input file "utility.pas" */


#include "p2c.h"

#define UTILITY_G
#include "utility.h"


#ifndef STRINGS_H
#include "strings.h"
#endif


#define blank           ' '
#define dummy           '\0'


short wordCount(Char *s)
{
  short i, n, FORLIM;

  if (*s == '\0')
    return 0;
  if (s[0] == blank)
    n = 0;
  else
    n = 1;
  FORLIM = strlen(s);
  for (i = 1; i <= FORLIM - 1; i++) {
    if (s[i-1] == blank && s[i] != blank)
      n++;
  }
  return n;
}


Char *GetNextWord(Char *Result, Char *s, Char Delim, Char Term)
{
  /* A delimiter is a character that separates words, but forms no part
     of them.  A terminator is a character that appears at the end of
     a word. */
  short n = 1;
  short start, last;

  last = strlen(s);
  while (n <= last && s[n-1] == Delim)
    n++;
  start = n;
  while (n <= last && s[n-1] != Term && s[n-1] != Delim)
    n++;
  if (n <= last && s[n-1] == Term)
    n++;
  substr_(Result, s, start, n - start);
  while (n <= last && s[n-1] == Delim)
    n++;
  predelete(s, n - 1);
  return Result;
}


Char *NextWord(Char *Result, Char *s_, Char Delim, Char Term)
{
  Char s[256];

  strcpy(s, s_);
  return (GetNextWord(Result, s, Delim, Term));
}


Char *plural(Char *Result, short n)
{
  if (n == 1)
    return strcpy(Result, "");
  else
    return strcpy(Result, "s");
}


short curtail(Char *s, Char c)
{
  short Result = 0;
  short l;

  l = strlen(s);
  if (s[l-1] == c) {
    shorten(s, l - 1);
    return l;
  }
  return Result;
}


Char *toString(Char *Result, short n)
{
  Char s[256];

  sprintf(s, "%d", n);
  return strcpy(Result, s);
}


short digit(Char c)
{
  return (c - '0');
}


boolean equalsIgnoreCase(Char *s1_, Char *s2_)
{
  Char s1[256], s2[256];

  strcpy(s1, s1_);
  strcpy(s2, s2_);
  toUpper(s1);
  toUpper(s2);
  return (strcmp(s1, s2) == 0);
}


boolean startsWithIgnoreCase(Char *s1_, Char *s2_)
{
  Char s1[256], s2[256];

  strcpy(s1, s1_);
  strcpy(s2, s2_);
  toUpper(s1);
  toUpper(s2);
  return (startsWith(s1, s2));
}


boolean startsWithBracedWord(Char *P_)
{
  Char P[256];
  Char w[256];

  strcpy(P, P_);
  GetNextWord(w, P, blank, dummy);
  return (w[0] == '{' && w[strlen(w) - 1] == '}');
}


void trim(Char *s)
{
  short k;

  k = posNot(blank, s);
  if (k > 1)
    predelete(s, k - 1);
  else if (k == 0)
    *s = '\0';
}


boolean endsWith(Char *s1_, Char *s2)
{
  Char s1[256];
  short l1, l2;

  strcpy(s1, s1_);
  l1 = strlen(s1);
  l2 = strlen(s2);
  if (l1 < l2)
    return false;
  predelete(s1, l1 - l2);
  return (strcmp(s1, s2) == 0);
}


/* Local variables for grep: */
struct LOC_grep {
  Char *source, *pattern;
  short p1[10], p2[10];
  short i, p, s, index;
  boolean matching;
} ;

Local void remember(short s1, short s2, struct LOC_grep *LINK)
{
  if (LINK->index > 9)
    _Escape(9999);
  LINK->p1[LINK->index] = s1;
  LINK->p2[LINK->index] = s2;
  LINK->s = s2 + 1;
  LINK->index++;
}

Local void matchnum(struct LOC_grep *LINK)
{
  boolean allowsign = false, allowpoint = false, quit = false;
  short s0;

  LINK->matching = false;
  s0 = LINK->s;
  if (LINK->p < strlen(LINK->pattern)) {
    if (LINK->pattern[LINK->p] == '#') {
      LINK->p++;
      allowsign = true;
      if (LINK->p < strlen(LINK->pattern)) {
	if (LINK->pattern[LINK->p] == '#') {
	  LINK->p++;
	  allowpoint = true;
	}
      }
    }
  }
  if (allowsign &&
      (LINK->source[LINK->s-1] == '-' || LINK->source[LINK->s-1] == '+')) {
    LINK->s++;
    if (LINK->s > strlen(LINK->source))
      return;
  }
  while (!quit && LINK->s <= strlen(LINK->source)) {
    if (LINK->source[LINK->s-1] == '.') {
      if (!allowpoint)
	quit = true;
      else {
	LINK->s++;
	allowpoint = false;
      }
    }
    if (isdigit(LINK->source[LINK->i-1])) {
      LINK->s++;
      LINK->matching = true;
    } else
      quit = true;
  }
  if (LINK->matching)
    remember(s0, LINK->s - 1, LINK);
}

Local void matchmeta(struct LOC_grep *LINK)
{
  if (LINK->p < strlen(LINK->pattern))
    LINK->p++;
  if (LINK->source[LINK->s-1] == LINK->pattern[LINK->p-1]) {
    LINK->s++;
    LINK->p++;
  } else
    LINK->matching = false;
}

Local void subgrep(struct LOC_grep *LINK)
{
  LINK->matching = true;
  if (LINK->pattern[LINK->p-1] == '*') {
    remember(LINK->s, strlen(LINK->source), LINK);
    LINK->p++;
    return;
  }
  if (LINK->pattern[LINK->p-1] == '?') {
    remember(LINK->s, LINK->s, LINK);
    LINK->p++;
    return;
  }
  if (LINK->pattern[LINK->p-1] == '#') {
    matchnum(LINK);
    return;
  }
  if (LINK->pattern[LINK->p-1] == '\\') {
    matchmeta(LINK);
    return;
  }
  if (LINK->source[LINK->s-1] == LINK->pattern[LINK->p-1]) {
    LINK->s++;
    LINK->p++;
  } else
    LINK->matching = false;
}


/*--- Match/Replace package --- */

/* Search and replace.  Stops when pattern no longer matches source.
          Pattern wildcards:
  ?   Any single character
  *   Any string
  #   An unsigned integer
  ##  A signed integer
  ### A signed number maybe with a decimal part
          Pattern metacharacters:
  \x  where x is any character, stands for that character
          Target wildcards
  \0 to \9  Value of corresponding source wildcard
          Target metacharacters
  \   When not followed by 0..9 or \, stands for itself
  \\  Backslash
*/
void grep(Char *source_, Char *pattern_, Char *target)
{
  struct LOC_grep V;
  short j, t, reg;
  Char product[256];
  boolean trigger = false;
  short FORLIM, FORLIM1;
  Char STR2[256];

  V.source = source_;
  V.pattern = pattern_;
  V.index = 0;
  V.s = 1;
  V.p = 1;
  for (V.i = 0; V.i <= 9; V.i++) {
    V.p1[V.i] = 1;
    V.p2[V.i] = 0;
  }
  while (V.matching && V.p <= strlen(V.pattern) && V.s <= strlen(V.source))
    subgrep(&V);
  *product = '\0';
  FORLIM = strlen(target);
  for (t = 0; t <= FORLIM - 1; t++) {
    if (trigger) {
      reg = digit(target[t]);
      if ((unsigned)reg <= 9) {
	FORLIM1 = V.p2[reg];
	for (j = V.p1[reg] - 1; j <= FORLIM1 - 1; j++)
	  sprintf(product + strlen(product), "%c", V.source[j]);
      } else if (target[t] == '\\')
	strcat(product, "\\");
      else
	sprintf(product + strlen(product), "\\%c", target[t]);
      trigger = false;
    } else if (target[t] == '\\' && t + 1 < strlen(target))
      trigger = true;
    else
      sprintf(product + strlen(product), "%c", target[t]);
  }
  strcpy(V.source, substr_(STR2, V.source, V.s, strlen(V.source)));
  strcpy(V.pattern, substr_(STR2, V.pattern, V.p, strlen(V.pattern)));
  strcpy(target, product);
}


/* "match" tests whether the source matches the pattern exactly */
boolean match(Char *source_, Char *pattern_)
{
  Char source[256], pattern[256];
  static Char target[256] = "";

  strcpy(source, source_);
  strcpy(pattern, pattern_);
  grep(source, pattern, target);
  return (*source == '\0' && *pattern == '\0');
}


/* "translate" replaces the pattern by the target in the source. */
Char *translate(Char *Result, Char *source_, Char *pattern_, Char *target_)
{
  Char source[256], pattern[256], target[256];

  strcpy(source, source_);
  strcpy(pattern, pattern_);
  strcpy(target, target_);
  grep(source, pattern, target);
  return strcpy(Result, target);
}




/* End. */