1: #include <config.h>
2: #include <stdlib.h>
3: #include <string.h>
4: #define YYBYACC 1
5: #define YYMAJOR 1
6: #define YYMINOR 9
7: #define YYLEX yylex()
8: #define YYEMPTY -1
9: #define yyclearin (yychar=(YYEMPTY))
10: #define yyerrok (yyerrflag=0)
11: #define YYRECOVERING() (yyerrflag!=0)
12: #define YYPREFIX "yy"
13: #line 2 "getdate.y"
14: /*
15: ** Originally written by Steven M. Bellovin <smb@research.att.com> while
16: ** at the University of North Carolina at Chapel Hill. Later tweaked by
17: ** a couple of people on Usenet. Completely overhauled by Rich $alz
18: ** <rsalz@bbn.com> and Jim Berets <jberets@bbn.com> in August, 1990;
19: **
20: ** This grammar has 10 shift/reduce conflicts.
21: **
22: ** This code is in the public domain and has no copyright.
23: */
24: /* SUPPRESS 287 on yaccpar_sccsid *//* Unused static variable */
25: /* SUPPRESS 288 on yyerrlab *//* Label unused */
26:
27: #include <config.h>
28:
29: #include <sys/types.h>
30: #include <sys/time.h>
31: #include <stdio.h>
32: #ifdef STDC_HEADERS
33: # include <stdlib.h>
34: # include <stddef.h>
35: #else
36: # ifdef HAVE_STDLIB_H
37: # include <stdlib.h>
38: # endif
39: #endif /* STDC_HEADERS */
40: #ifdef HAVE_STRING_H
41: # if defined(HAVE_MEMORY_H) && !defined(STDC_HEADERS)
42: # include <memory.h>
43: # endif
44: # include <string.h>
45: #endif /* HAVE_STRING_H */
46: #ifdef HAVE_STRINGS_H
47: # include <strings.h>
48: #endif /* HAVE_STRINGS_H */
49: #ifdef TIME_WITH_SYS_TIME
50: # include <time.h>
51: #endif
52: #include <ctype.h>
53:
54: #include "missing.h"
55:
56:
57: #define EPOCH 1970
58: #define HOUR(x) ((time_t)(x) * 60)
59: #define SECSPERDAY (24L * 60L * 60L)
60:
61:
62: /*
63: ** An entry in the lexical lookup table.
64: */
65: typedef struct _TABLE {
66: char *name;
67: int type;
68: time_t value;
69: } TABLE;
70:
71:
72: /*
73: ** Daylight-savings mode: on, off, or not yet known.
74: */
75: typedef enum _DSTMODE {
76: DSTon, DSToff, DSTmaybe
77: } DSTMODE;
78:
79: /*
80: ** Meridian: am, pm, or 24-hour style.
81: */
82: typedef enum _MERIDIAN {
83: MERam, MERpm, MER24
84: } MERIDIAN;
85:
86:
87: /*
88: ** Global variables. We could get rid of most of these by using a good
89: ** union as the yacc stack. (This routine was originally written before
90: ** yacc had the %union construct.) Maybe someday; right now we only use
91: ** the %union very rarely.
92: */
93: static char *yyInput;
94: static DSTMODE yyDSTmode;
95: static time_t yyDayOrdinal;
96: static time_t yyDayNumber;
97: static int yyHaveDate;
98: static int yyHaveDay;
99: static int yyHaveRel;
100: static int yyHaveTime;
101: static int yyHaveZone;
102: static time_t yyTimezone;
103: static time_t yyDay;
104: static time_t yyHour;
105: static time_t yyMinutes;
106: static time_t yyMonth;
107: static time_t yySeconds;
108: static time_t yyYear;
109: static MERIDIAN yyMeridian;
110: static time_t yyRelMonth;
111: static time_t yyRelSeconds;
112:
113: static int yyerror(const char *s);
114: static int yylex(void);
115: int yyparse(void);
116:
117: #line 107 "getdate.y"
118: #ifndef YYSTYPE_DEFINED
119: #define YYSTYPE_DEFINED
120: typedef union {
121: time_t Number;
122: enum _MERIDIAN Meridian;
123: } YYSTYPE;
124: #endif /* YYSTYPE_DEFINED */
125: #line 125 "getdate.c"
126: #define tAGO 257
127: #define tDAY 258
128: #define tDAYZONE 259
129: #define tID 260
130: #define tMERIDIAN 261
131: #define tMINUTE_UNIT 262
132: #define tMONTH 263
133: #define tMONTH_UNIT 264
134: #define tSEC_UNIT 265
135: #define tSNUMBER 266
136: #define tUNUMBER 267
137: #define tZONE 268
138: #define tDST 269
139: #define YYERRCODE 256
140: #if defined(__cplusplus) || defined(__STDC__)
141: const short yylhs[] =
142: #else
143: short yylhs[] =
144: #endif
145: { -1,
146: 0, 0, 2, 2, 2, 2, 2, 2, 3, 3,
147: 3, 3, 3, 4, 4, 4, 6, 6, 6, 5,
148: 5, 5, 5, 5, 5, 5, 5, 7, 7, 9,
149: 9, 9, 9, 9, 9, 9, 9, 9, 8, 1,
150: 1,
151: };
152: #if defined(__cplusplus) || defined(__STDC__)
153: const short yylen[] =
154: #else
155: short yylen[] =
156: #endif
157: { 2,
158: 0, 2, 1, 1, 1, 1, 1, 1, 2, 4,
159: 4, 6, 6, 1, 1, 2, 1, 2, 2, 3,
160: 5, 3, 3, 2, 4, 2, 3, 2, 1, 2,
161: 2, 1, 2, 2, 1, 2, 2, 1, 1, 0,
162: 1,
163: };
164: #if defined(__cplusplus) || defined(__STDC__)
165: const short yydefred[] =
166: #else
167: short yydefred[] =
168: #endif
169: { 1,
170: 0, 0, 15, 32, 0, 38, 35, 0, 0, 0,
171: 2, 3, 4, 5, 6, 7, 8, 0, 18, 0,
172: 31, 36, 33, 19, 9, 30, 0, 37, 34, 0,
173: 0, 0, 16, 28, 0, 23, 27, 22, 0, 0,
174: 25, 41, 11, 0, 10, 0, 0, 21, 13, 12,
175: };
176: #if defined(__cplusplus) || defined(__STDC__)
177: const short yydgoto[] =
178: #else
179: short yydgoto[] =
180: #endif
181: { 1,
182: 45, 11, 12, 13, 14, 15, 16, 17, 18,
183: };
184: #if defined(__cplusplus) || defined(__STDC__)
185: const short yysindex[] =
186: #else
187: short yysindex[] =
188: #endif
189: { 0,
190: -249, -38, 0, 0, -260, 0, 0, -240, -47, -248,
191: 0, 0, 0, 0, 0, 0, 0, -237, 0, -18,
192: 0, 0, 0, 0, 0, 0, -262, 0, 0, -239,
193: -238, -236, 0, 0, -235, 0, 0, 0, -56, -19,
194: 0, 0, 0, -234, 0, -232, -258, 0, 0, 0,};
195: #if defined(__cplusplus) || defined(__STDC__)
196: const short yyrindex[] =
197: #else
198: short yyrindex[] =
199: #endif
200: { 0,
201: 0, 1, 0, 0, 0, 0, 0, 0, 69, 12,
202: 0, 0, 0, 0, 0, 0, 0, 23, 0, 34,
203: 0, 0, 0, 0, 0, 0, 67, 0, 0, 0,
204: 0, 0, 0, 0, 0, 0, 0, 0, 56, 45,
205: 0, 0, 0, 0, 0, 0, 56, 0, 0, 0,};
206: #if defined(__cplusplus) || defined(__STDC__)
207: const short yygindex[] =
208: #else
209: short yygindex[] =
210: #endif
211: { 0,
212: -17, 0, 0, 0, 0, 0, 0, 0, 0,
213: };
214: #define YYTABLESIZE 337
215: #if defined(__cplusplus) || defined(__STDC__)
216: const short yytable[] =
217: #else
218: short yytable[] =
219: #endif
220: { 32,
221: 17, 44, 42, 36, 37, 19, 20, 49, 2, 3,
222: 31, 14, 4, 5, 6, 7, 8, 9, 10, 34,
223: 33, 21, 29, 22, 23, 35, 38, 46, 39, 50,
224: 40, 41, 47, 24, 48, 0, 0, 0, 0, 0,
225: 0, 0, 0, 0, 20, 0, 0, 0, 0, 0,
226: 0, 0, 0, 0, 0, 40, 0, 0, 0, 0,
227: 0, 0, 0, 0, 0, 0, 26, 0, 39, 0,
228: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
229: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
230: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
231: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
232: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
233: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
234: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
235: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
236: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
237: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
238: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
239: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
240: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
241: 0, 0, 0, 0, 42, 0, 0, 0, 0, 43,
242: 24, 0, 0, 25, 26, 27, 28, 29, 30, 0,
243: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
244: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
245: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
246: 0, 0, 0, 0, 0, 0, 0, 0, 17, 17,
247: 0, 0, 17, 17, 17, 17, 17, 17, 17, 14,
248: 14, 0, 0, 14, 14, 14, 14, 14, 14, 14,
249: 29, 29, 0, 0, 29, 29, 29, 29, 29, 29,
250: 29, 24, 24, 0, 0, 24, 24, 24, 24, 24,
251: 24, 24, 20, 20, 0, 0, 20, 20, 20, 20,
252: 20, 20, 20, 40, 40, 0, 0, 40, 40, 40,
253: 40, 0, 40, 40, 26, 26, 0, 39, 26, 26,
254: 26, 26, 0, 0, 26, 39, 39,
255: };
256: #if defined(__cplusplus) || defined(__STDC__)
257: const short yycheck[] =
258: #else
259: short yycheck[] =
260: #endif
261: { 47,
262: 0, 58, 261, 266, 267, 44, 267, 266, 258, 259,
263: 58, 0, 262, 263, 264, 265, 266, 267, 268, 257,
264: 269, 262, 0, 264, 265, 44, 266, 47, 267, 47,
265: 267, 267, 267, 0, 267, -1, -1, -1, -1, -1,
266: -1, -1, -1, -1, 0, -1, -1, -1, -1, -1,
267: -1, -1, -1, -1, -1, 0, -1, -1, -1, -1,
268: -1, -1, -1, -1, -1, -1, 0, -1, 0, -1,
269: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
270: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
271: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
272: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
273: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
274: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
275: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
276: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
277: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
278: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
279: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
280: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
281: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
282: -1, -1, -1, -1, 261, -1, -1, -1, -1, 266,
283: 258, -1, -1, 261, 262, 263, 264, 265, 266, -1,
284: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
285: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
286: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
287: -1, -1, -1, -1, -1, -1, -1, -1, 258, 259,
288: -1, -1, 262, 263, 264, 265, 266, 267, 268, 258,
289: 259, -1, -1, 262, 263, 264, 265, 266, 267, 268,
290: 258, 259, -1, -1, 262, 263, 264, 265, 266, 267,
291: 268, 258, 259, -1, -1, 262, 263, 264, 265, 266,
292: 267, 268, 258, 259, -1, -1, 262, 263, 264, 265,
293: 266, 267, 268, 258, 259, -1, -1, 262, 263, 264,
294: 265, -1, 267, 268, 258, 259, -1, 259, 262, 263,
295: 264, 265, -1, -1, 268, 267, 268,
296: };
297: #define YYFINAL 1
298: #ifndef YYDEBUG
299: #define YYDEBUG 0
300: #endif
301: #define YYMAXTOKEN 269
302: #if YYDEBUG
303: #if defined(__cplusplus) || defined(__STDC__)
304: const char * const yyname[] =
305: #else
306: char *yyname[] =
307: #endif
308: {
309: "end-of-file",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
310: 0,0,0,0,0,0,0,0,0,0,"','",0,0,"'/'",0,0,0,0,0,0,0,0,0,0,"':'",0,0,0,0,0,0,0,0,0,
311: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
312: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
313: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
314: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
315: 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"tAGO","tDAY",
316: "tDAYZONE","tID","tMERIDIAN","tMINUTE_UNIT","tMONTH","tMONTH_UNIT","tSEC_UNIT",
317: "tSNUMBER","tUNUMBER","tZONE","tDST",
318: };
319: #if defined(__cplusplus) || defined(__STDC__)
320: const char * const yyrule[] =
321: #else
322: char *yyrule[] =
323: #endif
324: {"$accept : spec",
325: "spec :",
326: "spec : spec item",
327: "item : time",
328: "item : zone",
329: "item : date",
330: "item : day",
331: "item : rel",
332: "item : number",
333: "time : tUNUMBER tMERIDIAN",
334: "time : tUNUMBER ':' tUNUMBER o_merid",
335: "time : tUNUMBER ':' tUNUMBER tSNUMBER",
336: "time : tUNUMBER ':' tUNUMBER ':' tUNUMBER o_merid",
337: "time : tUNUMBER ':' tUNUMBER ':' tUNUMBER tSNUMBER",
338: "zone : tZONE",
339: "zone : tDAYZONE",
340: "zone : tZONE tDST",
341: "day : tDAY",
342: "day : tDAY ','",
343: "day : tUNUMBER tDAY",
344: "date : tUNUMBER '/' tUNUMBER",
345: "date : tUNUMBER '/' tUNUMBER '/' tUNUMBER",
346: "date : tUNUMBER tSNUMBER tSNUMBER",
347: "date : tUNUMBER tMONTH tSNUMBER",
348: "date : tMONTH tUNUMBER",
349: "date : tMONTH tUNUMBER ',' tUNUMBER",
350: "date : tUNUMBER tMONTH",
351: "date : tUNUMBER tMONTH tUNUMBER",
352: "rel : relunit tAGO",
353: "rel : relunit",
354: "relunit : tUNUMBER tMINUTE_UNIT",
355: "relunit : tSNUMBER tMINUTE_UNIT",
356: "relunit : tMINUTE_UNIT",
357: "relunit : tSNUMBER tSEC_UNIT",
358: "relunit : tUNUMBER tSEC_UNIT",
359: "relunit : tSEC_UNIT",
360: "relunit : tSNUMBER tMONTH_UNIT",
361: "relunit : tUNUMBER tMONTH_UNIT",
362: "relunit : tMONTH_UNIT",
363: "number : tUNUMBER",
364: "o_merid :",
365: "o_merid : tMERIDIAN",
366: };
367: #endif
368: #ifdef YYSTACKSIZE
369: #undef YYMAXDEPTH
370: #define YYMAXDEPTH YYSTACKSIZE
371: #else
372: #ifdef YYMAXDEPTH
373: #define YYSTACKSIZE YYMAXDEPTH
374: #else
375: #define YYSTACKSIZE 10000
376: #define YYMAXDEPTH 10000
377: #endif
378: #endif
379: #define YYINITSTACKSIZE 200
380: /* LINTUSED */
381: int yydebug;
382: int yynerrs;
383: int yyerrflag;
384: int yychar;
385: short *yyssp;
386: YYSTYPE *yyvsp;
387: YYSTYPE yyval;
388: YYSTYPE yylval;
389: short *yyss;
390: short *yysslim;
391: YYSTYPE *yyvs;
392: unsigned int yystacksize;
393: #line 326 "getdate.y"
394:
395: /* Month and day table. */
396: static TABLE const MonthDayTable[] = {
397: { "january", tMONTH, 1 },
398: { "february", tMONTH, 2 },
399: { "march", tMONTH, 3 },
400: { "april", tMONTH, 4 },
401: { "may", tMONTH, 5 },
402: { "june", tMONTH, 6 },
403: { "july", tMONTH, 7 },
404: { "august", tMONTH, 8 },
405: { "september", tMONTH, 9 },
406: { "sept", tMONTH, 9 },
407: { "october", tMONTH, 10 },
408: { "november", tMONTH, 11 },
409: { "december", tMONTH, 12 },
410: { "sunday", tDAY, 0 },
411: { "monday", tDAY, 1 },
412: { "tuesday", tDAY, 2 },
413: { "tues", tDAY, 2 },
414: { "wednesday", tDAY, 3 },
415: { "wednes", tDAY, 3 },
416: { "thursday", tDAY, 4 },
417: { "thur", tDAY, 4 },
418: { "thurs", tDAY, 4 },
419: { "friday", tDAY, 5 },
420: { "saturday", tDAY, 6 },
421: { NULL }
422: };
423:
424: /* Time units table. */
425: static TABLE const UnitsTable[] = {
426: { "year", tMONTH_UNIT, 12 },
427: { "month", tMONTH_UNIT, 1 },
428: { "fortnight", tMINUTE_UNIT, 14 * 24 * 60 },
429: { "week", tMINUTE_UNIT, 7 * 24 * 60 },
430: { "day", tMINUTE_UNIT, 1 * 24 * 60 },
431: { "hour", tMINUTE_UNIT, 60 },
432: { "minute", tMINUTE_UNIT, 1 },
433: { "min", tMINUTE_UNIT, 1 },
434: { "second", tSEC_UNIT, 1 },
435: { "sec", tSEC_UNIT, 1 },
436: { NULL }
437: };
438:
439: /* Assorted relative-time words. */
440: static TABLE const OtherTable[] = {
441: { "tomorrow", tMINUTE_UNIT, 1 * 24 * 60 },
442: { "yesterday", tMINUTE_UNIT, -1 * 24 * 60 },
443: { "today", tMINUTE_UNIT, 0 },
444: { "now", tMINUTE_UNIT, 0 },
445: { "last", tUNUMBER, -1 },
446: { "this", tUNUMBER, 0 },
447: { "next", tUNUMBER, 2 },
448: { "first", tUNUMBER, 1 },
449: /* { "second", tUNUMBER, 2 }, */
450: { "third", tUNUMBER, 3 },
451: { "fourth", tUNUMBER, 4 },
452: { "fifth", tUNUMBER, 5 },
453: { "sixth", tUNUMBER, 6 },
454: { "seventh", tUNUMBER, 7 },
455: { "eighth", tUNUMBER, 8 },
456: { "ninth", tUNUMBER, 9 },
457: { "tenth", tUNUMBER, 10 },
458: { "eleventh", tUNUMBER, 11 },
459: { "twelfth", tUNUMBER, 12 },
460: { "ago", tAGO, 1 },
461: { NULL }
462: };
463:
464: /* The timezone table. */
465: /* Some of these are commented out because a time_t can't store a float. */
466: static TABLE const TimezoneTable[] = {
467: { "gmt", tZONE, HOUR( 0) }, /* Greenwich Mean */
468: { "ut", tZONE, HOUR( 0) }, /* Universal (Coordinated) */
469: { "utc", tZONE, HOUR( 0) },
470: { "wet", tZONE, HOUR( 0) }, /* Western European */
471: { "bst", tDAYZONE, HOUR( 0) }, /* British Summer */
472: { "wat", tZONE, HOUR( 1) }, /* West Africa */
473: { "at", tZONE, HOUR( 2) }, /* Azores */
474: #if 0
475: /* For completeness. BST is also British Summer, and GST is
476: * also Guam Standard. */
477: { "bst", tZONE, HOUR( 3) }, /* Brazil Standard */
478: { "gst", tZONE, HOUR( 3) }, /* Greenland Standard */
479: #endif
480: #if 0
481: { "nft", tZONE, HOUR(3.5) }, /* Newfoundland */
482: { "nst", tZONE, HOUR(3.5) }, /* Newfoundland Standard */
483: { "ndt", tDAYZONE, HOUR(3.5) }, /* Newfoundland Daylight */
484: #endif
485: { "ast", tZONE, HOUR( 4) }, /* Atlantic Standard */
486: { "adt", tDAYZONE, HOUR( 4) }, /* Atlantic Daylight */
487: { "est", tZONE, HOUR( 5) }, /* Eastern Standard */
488: { "edt", tDAYZONE, HOUR( 5) }, /* Eastern Daylight */
489: { "cst", tZONE, HOUR( 6) }, /* Central Standard */
490: { "cdt", tDAYZONE, HOUR( 6) }, /* Central Daylight */
491: { "mst", tZONE, HOUR( 7) }, /* Mountain Standard */
492: { "mdt", tDAYZONE, HOUR( 7) }, /* Mountain Daylight */
493: { "pst", tZONE, HOUR( 8) }, /* Pacific Standard */
494: { "pdt", tDAYZONE, HOUR( 8) }, /* Pacific Daylight */
495: { "yst", tZONE, HOUR( 9) }, /* Yukon Standard */
496: { "ydt", tDAYZONE, HOUR( 9) }, /* Yukon Daylight */
497: { "hst", tZONE, HOUR(10) }, /* Hawaii Standard */
498: { "hdt", tDAYZONE, HOUR(10) }, /* Hawaii Daylight */
499: { "cat", tZONE, HOUR(10) }, /* Central Alaska */
500: { "ahst", tZONE, HOUR(10) }, /* Alaska-Hawaii Standard */
501: { "nt", tZONE, HOUR(11) }, /* Nome */
502: { "idlw", tZONE, HOUR(12) }, /* International Date Line West */
503: { "cet", tZONE, -HOUR(1) }, /* Central European */
504: { "met", tZONE, -HOUR(1) }, /* Middle European */
505: { "mewt", tZONE, -HOUR(1) }, /* Middle European Winter */
506: { "mest", tDAYZONE, -HOUR(1) }, /* Middle European Summer */
507: { "swt", tZONE, -HOUR(1) }, /* Swedish Winter */
508: { "sst", tDAYZONE, -HOUR(1) }, /* Swedish Summer */
509: { "fwt", tZONE, -HOUR(1) }, /* French Winter */
510: { "fst", tDAYZONE, -HOUR(1) }, /* French Summer */
511: { "eet", tZONE, -HOUR(2) }, /* Eastern Europe, USSR Zone 1 */
512: { "bt", tZONE, -HOUR(3) }, /* Baghdad, USSR Zone 2 */
513: #if 0
514: { "it", tZONE, -HOUR(3.5) },/* Iran */
515: #endif
516: { "zp4", tZONE, -HOUR(4) }, /* USSR Zone 3 */
517: { "zp5", tZONE, -HOUR(5) }, /* USSR Zone 4 */
518: #if 0
519: { "ist", tZONE, -HOUR(5.5) },/* Indian Standard */
520: #endif
521: { "zp6", tZONE, -HOUR(6) }, /* USSR Zone 5 */
522: #if 0
523: /* For completeness. NST is also Newfoundland Stanard, and SST is
524: * also Swedish Summer. */
525: { "nst", tZONE, -HOUR(6.5) },/* North Sumatra */
526: { "sst", tZONE, -HOUR(7) }, /* South Sumatra, USSR Zone 6 */
527: #endif /* 0 */
528: { "wast", tZONE, -HOUR(7) }, /* West Australian Standard */
529: { "wadt", tDAYZONE, -HOUR(7) }, /* West Australian Daylight */
530: #if 0
531: { "jt", tZONE, -HOUR(7.5) },/* Java (3pm in Cronusland!) */
532: #endif
533: { "cct", tZONE, -HOUR(8) }, /* China Coast, USSR Zone 7 */
534: { "jst", tZONE, -HOUR(9) }, /* Japan Standard, USSR Zone 8 */
535: #if 0
536: { "cast", tZONE, -HOUR(9.5) },/* Central Australian Standard */
537: { "cadt", tDAYZONE, -HOUR(9.5) },/* Central Australian Daylight */
538: #endif
539: { "east", tZONE, -HOUR(10) }, /* Eastern Australian Standard */
540: { "eadt", tDAYZONE, -HOUR(10) }, /* Eastern Australian Daylight */
541: { "gst", tZONE, -HOUR(10) }, /* Guam Standard, USSR Zone 9 */
542: { "nzt", tZONE, -HOUR(12) }, /* New Zealand */
543: { "nzst", tZONE, -HOUR(12) }, /* New Zealand Standard */
544: { "nzdt", tDAYZONE, -HOUR(12) }, /* New Zealand Daylight */
545: { "idle", tZONE, -HOUR(12) }, /* International Date Line East */
546: { NULL }
547: };
548:
549: /* Military timezone table. */
550: static TABLE const MilitaryTable[] = {
551: { "a", tZONE, HOUR( 1) },
552: { "b", tZONE, HOUR( 2) },
553: { "c", tZONE, HOUR( 3) },
554: { "d", tZONE, HOUR( 4) },
555: { "e", tZONE, HOUR( 5) },
556: { "f", tZONE, HOUR( 6) },
557: { "g", tZONE, HOUR( 7) },
558: { "h", tZONE, HOUR( 8) },
559: { "i", tZONE, HOUR( 9) },
560: { "k", tZONE, HOUR( 10) },
561: { "l", tZONE, HOUR( 11) },
562: { "m", tZONE, HOUR( 12) },
563: { "n", tZONE, HOUR(- 1) },
564: { "o", tZONE, HOUR(- 2) },
565: { "p", tZONE, HOUR(- 3) },
566: { "q", tZONE, HOUR(- 4) },
567: { "r", tZONE, HOUR(- 5) },
568: { "s", tZONE, HOUR(- 6) },
569: { "t", tZONE, HOUR(- 7) },
570: { "u", tZONE, HOUR(- 8) },
571: { "v", tZONE, HOUR(- 9) },
572: { "w", tZONE, HOUR(-10) },
573: { "x", tZONE, HOUR(-11) },
574: { "y", tZONE, HOUR(-12) },
575: { "z", tZONE, HOUR( 0) },
576: { NULL }
577: };
578:
579:
580:
581:
582: /* ARGSUSED */
583: static int
584: yyerror(const char *s)
585: {
586: return 0;
587: }
588:
589:
590: static time_t
591: ToSeconds(time_t Hours, time_t Minutes, time_t Seconds, MERIDIAN Meridian)
592: {
593: if (Minutes < 0 || Minutes > 59 || Seconds < 0 || Seconds > 59)
594: return -1;
595: switch (Meridian) {
596: case MER24:
597: if (Hours < 0 || Hours > 23)
598: return -1;
599: return (Hours * 60L + Minutes) * 60L + Seconds;
600: case MERam:
601: if (Hours < 1 || Hours > 12)
602: return -1;
603: if (Hours == 12)
604: Hours = 0;
605: return (Hours * 60L + Minutes) * 60L + Seconds;
606: case MERpm:
607: if (Hours < 1 || Hours > 12)
608: return -1;
609: if (Hours == 12)
610: Hours = 0;
611: return ((Hours + 12) * 60L + Minutes) * 60L + Seconds;
612: default:
613: abort ();
614: }
615: /* NOTREACHED */
616: }
617:
618:
619: /* Year is either
620: * A negative number, which means to use its absolute value (why?)
621: * A number from 0 to 99, which means a year from 1900 to 1999, or
622: * The actual year (>=100). */
623: static time_t
624: Convert(time_t Month, time_t Day, time_t Year, time_t Hours, time_t Minutes,
625: time_t Seconds, MERIDIAN Meridian, DSTMODE DSTmode)
626: {
627: static int DaysInMonth[12] = {
628: 31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
629: };
630: struct tm *tm;
631: time_t tod;
632: time_t Julian;
633: int i;
634:
635: if (Year < 0)
636: Year = -Year;
637: if (Year < 69)
638: Year += 2000;
639: else if (Year < 100) {
640: Year += 1900;
641: if (Year < EPOCH)
642: Year += 100;
643: }
644: DaysInMonth[1] = Year % 4 == 0 && (Year % 100 != 0 || Year % 400 == 0)
645: ? 29 : 28;
646: /* 32-bit time_t cannot represent years past 2038 */
647: if (Year < EPOCH || (sizeof(time_t) == sizeof(int) && Year > 2038)
648: || Month < 1 || Month > 12
649: /* Lint fluff: "conversion from long may lose accuracy" */
650: || Day < 1 || Day > DaysInMonth[(int)--Month])
651: return -1;
652:
653: for (Julian = Day - 1, i = 0; i < Month; i++)
654: Julian += DaysInMonth[i];
655: for (i = EPOCH; i < Year; i++)
656: Julian += 365 + (i % 4 == 0);
657: Julian *= SECSPERDAY;
658: Julian += yyTimezone * 60L;
659: if ((tod = ToSeconds(Hours, Minutes, Seconds, Meridian)) < 0)
660: return -1;
661: Julian += tod;
662: if (DSTmode == DSTon
663: || (DSTmode == DSTmaybe && (tm = localtime(&Julian)) && tm->tm_isdst))
664: Julian -= 60 * 60;
665: return Julian;
666: }
667:
668:
669: static time_t
670: DSTcorrect(time_t Start, time_t Future)
671: {
672: struct tm *start_tm;
673: struct tm *future_tm;
674: time_t StartDay;
675: time_t FutureDay;
676:
677: start_tm = localtime(&Start);
678: future_tm = localtime(&Future);
679: if (!start_tm || !future_tm)
680: return -1;
681:
682: StartDay = (start_tm->tm_hour + 1) % 24;
683: FutureDay = (future_tm->tm_hour + 1) % 24;
684: return (Future - Start) + (StartDay - FutureDay) * 60L * 60L;
685: }
686:
687:
688: static time_t
689: RelativeDate(time_t Start, time_t DayOrdinal, time_t DayNumber)
690: {
691: struct tm *tm;
692: time_t now;
693:
694: now = Start;
695: if (!(tm = localtime(&now)))
696: return -1;
697: now += SECSPERDAY * ((DayNumber - tm->tm_wday + 7) % 7);
698: now += 7 * SECSPERDAY * (DayOrdinal <= 0 ? DayOrdinal : DayOrdinal - 1);
699: return DSTcorrect(Start, now);
700: }
701:
702:
703: static time_t
704: RelativeMonth(time_t Start, time_t RelMonth)
705: {
706: struct tm *tm;
707: time_t Month;
708: time_t Year;
709:
710: if (RelMonth == 0)
711: return 0;
712: if (!(tm = localtime(&Start)))
713: return -1;
714: Month = 12 * (tm->tm_year + 1900) + tm->tm_mon + RelMonth;
715: Year = Month / 12;
716: Month = Month % 12 + 1;
717: return DSTcorrect(Start,
718: Convert(Month, (time_t)tm->tm_mday, Year,
719: (time_t)tm->tm_hour, (time_t)tm->tm_min, (time_t)tm->tm_sec,
720: MER24, DSTmaybe));
721: }
722:
723:
724: static int
725: LookupWord(char *buff)
726: {
727: char *p;
728: char *q;
729: const TABLE *tp;
730: int i;
731: int abbrev;
732:
733: /* Make it lowercase. */
734: for (p = buff; *p; p++)
735: if (isupper((unsigned char)*p))
736: *p = tolower((unsigned char)*p);
737:
738: if (strcmp(buff, "am") == 0 || strcmp(buff, "a.m.") == 0) {
739: yylval.Meridian = MERam;
740: return tMERIDIAN;
741: }
742: if (strcmp(buff, "pm") == 0 || strcmp(buff, "p.m.") == 0) {
743: yylval.Meridian = MERpm;
744: return tMERIDIAN;
745: }
746:
747: /* See if we have an abbreviation for a month. */
748: if (strlen(buff) == 3)
749: abbrev = 1;
750: else if (strlen(buff) == 4 && buff[3] == '.') {
751: abbrev = 1;
752: buff[3] = '\0';
753: }
754: else
755: abbrev = 0;
756:
757: for (tp = MonthDayTable; tp->name; tp++) {
758: if (abbrev) {
759: if (strncmp(buff, tp->name, 3) == 0) {
760: yylval.Number = tp->value;
761: return tp->type;
762: }
763: }
764: else if (strcmp(buff, tp->name) == 0) {
765: yylval.Number = tp->value;
766: return tp->type;
767: }
768: }
769:
770: for (tp = TimezoneTable; tp->name; tp++)
771: if (strcmp(buff, tp->name) == 0) {
772: yylval.Number = tp->value;
773: return tp->type;
774: }
775:
776: if (strcmp(buff, "dst") == 0)
777: return tDST;
778:
779: for (tp = UnitsTable; tp->name; tp++)
780: if (strcmp(buff, tp->name) == 0) {
781: yylval.Number = tp->value;
782: return tp->type;
783: }
784:
785: /* Strip off any plural and try the units table again. */
786: i = strlen(buff) - 1;
787: if (buff[i] == 's') {
788: buff[i] = '\0';
789: for (tp = UnitsTable; tp->name; tp++)
790: if (strcmp(buff, tp->name) == 0) {
791: yylval.Number = tp->value;
792: return tp->type;
793: }
794: buff[i] = 's'; /* Put back for "this" in OtherTable. */
795: }
796:
797: for (tp = OtherTable; tp->name; tp++)
798: if (strcmp(buff, tp->name) == 0) {
799: yylval.Number = tp->value;
800: return tp->type;
801: }
802:
803: /* Military timezones. */
804: if (buff[1] == '\0' && isalpha((unsigned char)*buff)) {
805: for (tp = MilitaryTable; tp->name; tp++)
806: if (strcmp(buff, tp->name) == 0) {
807: yylval.Number = tp->value;
808: return tp->type;
809: }
810: }
811:
812: /* Drop out any periods and try the timezone table again. */
813: for (i = 0, p = q = buff; *q; q++)
814: if (*q != '.')
815: *p++ = *q;
816: else
817: i++;
818: *p = '\0';
819: if (i)
820: for (tp = TimezoneTable; tp->name; tp++)
821: if (strcmp(buff, tp->name) == 0) {
822: yylval.Number = tp->value;
823: return tp->type;
824: }
825:
826: return tID;
827: }
828:
829:
830: static int
831: yylex(void)
832: {
833: char c;
834: char *p;
835: char buff[20];
836: int Count;
837: int sign;
838:
839: for ( ; ; ) {
840: while (isspace((unsigned char)*yyInput))
841: yyInput++;
842:
843: if (isdigit((unsigned char)(c = *yyInput)) || c == '-' || c == '+') {
844: if (c == '-' || c == '+') {
845: sign = c == '-' ? -1 : 1;
846: if (!isdigit((unsigned char)*++yyInput))
847: /* skip the '-' sign */
848: continue;
849: }
850: else
851: sign = 0;
852: for (yylval.Number = 0; isdigit((unsigned char)(c = *yyInput++)); )
853: yylval.Number = 10 * yylval.Number + c - '0';
854: yyInput--;
855: if (sign < 0)
856: yylval.Number = -yylval.Number;
857: return sign ? tSNUMBER : tUNUMBER;
858: }
859: if (isalpha((unsigned char)c)) {
860: for (p = buff; isalpha((unsigned char)(c = *yyInput++)) || c == '.'; )
861: if (p < &buff[sizeof buff - 1])
862: *p++ = c;
863: *p = '\0';
864: yyInput--;
865: return LookupWord(buff);
866: }
867: if (c != '(')
868: return *yyInput++;
869: Count = 0;
870: do {
871: c = *yyInput++;
872: if (c == '\0')
873: return c;
874: if (c == '(')
875: Count++;
876: else if (c == ')')
877: Count--;
878: } while (Count > 0);
879: }
880: }
881:
882: #define TM_YEAR_ORIGIN 1900
883:
884: /* Yield A - B, measured in seconds. */
885: static long
886: difftm(struct tm *a, struct tm *b)
887: {
888: int ay = a->tm_year + (TM_YEAR_ORIGIN - 1);
889: int by = b->tm_year + (TM_YEAR_ORIGIN - 1);
890: int days = (
891: /* difference in day of year */
892: a->tm_yday - b->tm_yday
893: /* + intervening leap days */
894: + ((ay >> 2) - (by >> 2))
895: - (ay/100 - by/100)
896: + ((ay/100 >> 2) - (by/100 >> 2))
897: /* + difference in years * 365 */
898: + (long)(ay-by) * 365
899: );
900: return (60*(60*(24*days + (a->tm_hour - b->tm_hour))
901: + (a->tm_min - b->tm_min))
902: + (a->tm_sec - b->tm_sec));
903: }
904:
905: time_t
906: get_date(char *p)
907: {
908: struct tm *tm, *gmt, gmtbuf;
909: time_t Start;
910: time_t tod;
911: time_t now;
912: time_t timezone;
913:
914: yyInput = p;
915: (void)time (&now);
916:
917: gmt = gmtime (&now);
918: if (gmt != NULL)
919: {
920: /* Make a copy, in case localtime modifies *tm (I think
921: that comment now applies to *gmt, but I am too
922: lazy to dig into how gmtime and locatime allocate the
923: structures they return pointers to). */
924: gmtbuf = *gmt;
925: gmt = &gmtbuf;
926: }
927:
928: if (! (tm = localtime (&now)))
929: return -1;
930:
931: if (gmt != NULL)
932: timezone = difftm (gmt, tm) / 60;
933: else
934: /* We are on a system like VMS, where the system clock is
935: in local time and the system has no concept of timezones.
936: Hopefully we can fake this out (for the case in which the
937: user specifies no timezone) by just saying the timezone
938: is zero. */
939: timezone = 0;
940:
941: if(tm->tm_isdst)
942: timezone += 60;
943:
944: yyYear = tm->tm_year + 1900;
945: yyMonth = tm->tm_mon + 1;
946: yyDay = tm->tm_mday;
947: yyTimezone = timezone;
948: yyDSTmode = DSTmaybe;
949: yyHour = 0;
950: yyMinutes = 0;
951: yySeconds = 0;
952: yyMeridian = MER24;
953: yyRelSeconds = 0;
954: yyRelMonth = 0;
955: yyHaveDate = 0;
956: yyHaveDay = 0;
957: yyHaveRel = 0;
958: yyHaveTime = 0;
959: yyHaveZone = 0;
960:
961: if (yyparse()
962: || yyHaveTime > 1 || yyHaveZone > 1 || yyHaveDate > 1 || yyHaveDay > 1)
963: return -1;
964:
965: if (yyHaveDate || yyHaveTime || yyHaveDay) {
966: Start = Convert(yyMonth, yyDay, yyYear, yyHour, yyMinutes, yySeconds,
967: yyMeridian, yyDSTmode);
968: if (Start < 0)
969: return -1;
970: }
971: else {
972: Start = now;
973: if (!yyHaveRel)
974: Start -= ((tm->tm_hour * 60L + tm->tm_min) * 60L) + tm->tm_sec;
975: }
976:
977: Start += yyRelSeconds;
978: Start += RelativeMonth(Start, yyRelMonth);
979:
980: if (yyHaveDay && !yyHaveDate) {
981: tod = RelativeDate(Start, yyDayOrdinal, yyDayNumber);
982: Start += tod;
983: }
984:
985: /* Have to do *something* with a legitimate -1 so it's distinguishable
986: * from the error return value. (Alternately could set errno on error.) */
987: return Start == -1 ? 0 : Start;
988: }
989:
990:
991: #ifdef TEST
992:
993: /* ARGSUSED */
994: int
995: main(int argc, char *argv[])
996: {
997: char buff[128];
998: time_t d;
999:
1000: (void)printf("Enter date, or blank line to exit.\n\t> ");
1001: (void)fflush(stdout);
1002: while (fgets(buff, sizeof(buff), stdin) && buff[0]) {
1003: d = get_date(buff);
1004: if (d == -1)
1005: (void)printf("Bad format - couldn't convert.\n");
1006: else
1007: (void)printf("%s", ctime(&d));
1008: (void)printf("\t> ");
1009: (void)fflush(stdout);
1010: }
1011: exit(0);
1012: /* NOTREACHED */
1013: }
1014: #endif /* TEST */
1015: #line 963 "getdate.c"
1016: /* allocate initial stack or double stack size, up to YYMAXDEPTH */
1017: #if defined(__cplusplus) || defined(__STDC__)
1018: static int yygrowstack(void)
1019: #else
1020: static int yygrowstack()
1021: #endif
1022: {
1023: unsigned int newsize;
1024: long sslen;
1025: short *newss;
1026: YYSTYPE *newvs;
1027:
1028: if ((newsize = yystacksize) == 0)
1029: newsize = YYINITSTACKSIZE;
1030: else if (newsize >= YYMAXDEPTH)
1031: return -1;
1032: else if ((newsize *= 2) > YYMAXDEPTH)
1033: newsize = YYMAXDEPTH;
1034: #ifdef SIZE_MAX
1035: #define YY_SIZE_MAX SIZE_MAX
1036: #else
1037: #ifdef __STDC__
1038: #define YY_SIZE_MAX 0xffffffffU
1039: #else
1040: #define YY_SIZE_MAX (unsigned int)0xffffffff
1041: #endif
1042: #endif
1043: if (YY_SIZE_MAX / newsize < sizeof *newss)
1044: goto bail;
1045: sslen = yyssp - yyss;
1046: newss = yyss ? (short *)realloc(yyss, newsize * sizeof *newss) :
1047: (short *)malloc(newsize * sizeof *newss); /* overflow check above */
1048: if (newss == NULL)
1049: goto bail;
1050: yyss = newss;
1051: yyssp = newss + sslen;
1052: newvs = yyvs ? (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs) :
1053: (YYSTYPE *)malloc(newsize * sizeof *newvs); /* overflow check above */
1054: if (newvs == NULL)
1055: goto bail;
1056: yyvs = newvs;
1057: yyvsp = newvs + sslen;
1058: yystacksize = newsize;
1059: yysslim = yyss + newsize - 1;
1060: return 0;
1061: bail:
1062: if (yyss)
1063: free(yyss);
1064: if (yyvs)
1065: free(yyvs);
1066: yyss = yyssp = NULL;
1067: yyvs = yyvsp = NULL;
1068: yystacksize = 0;
1069: return -1;
1070: }
1071:
1072: #define YYABORT goto yyabort
1073: #define YYREJECT goto yyabort
1074: #define YYACCEPT goto yyaccept
1075: #define YYERROR goto yyerrlab
1076: int
1077: #if defined(__cplusplus) || defined(__STDC__)
1078: yyparse(void)
1079: #else
1080: yyparse()
1081: #endif
1082: {
1083: int yym, yyn, yystate;
1084: #if YYDEBUG
1085: #if defined(__cplusplus) || defined(__STDC__)
1086: const char *yys;
1087: #else /* !(defined(__cplusplus) || defined(__STDC__)) */
1088: char *yys;
1089: #endif /* !(defined(__cplusplus) || defined(__STDC__)) */
1090:
1091: if ((yys = getenv("YYDEBUG")))
1092: {
1093: yyn = *yys;
1094: if (yyn >= '0' && yyn <= '9')
1095: yydebug = yyn - '0';
1096: }
1097: #endif /* YYDEBUG */
1098:
1099: yynerrs = 0;
1100: yyerrflag = 0;
1101: yychar = (-1);
1102:
1103: if (yyss == NULL && yygrowstack()) goto yyoverflow;
1104: yyssp = yyss;
1105: yyvsp = yyvs;
1106: *yyssp = yystate = 0;
1107:
1108: yyloop:
1109: if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
1110: if (yychar < 0)
1111: {
1112: if ((yychar = yylex()) < 0) yychar = 0;
1113: #if YYDEBUG
1114: if (yydebug)
1115: {
1116: yys = 0;
1117: if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
1118: if (!yys) yys = "illegal-symbol";
1119: printf("%sdebug: state %d, reading %d (%s)\n",
1120: YYPREFIX, yystate, yychar, yys);
1121: }
1122: #endif
1123: }
1124: if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
1125: yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
1126: {
1127: #if YYDEBUG
1128: if (yydebug)
1129: printf("%sdebug: state %d, shifting to state %d\n",
1130: YYPREFIX, yystate, yytable[yyn]);
1131: #endif
1132: if (yyssp >= yysslim && yygrowstack())
1133: {
1134: goto yyoverflow;
1135: }
1136: *++yyssp = yystate = yytable[yyn];
1137: *++yyvsp = yylval;
1138: yychar = (-1);
1139: if (yyerrflag > 0) --yyerrflag;
1140: goto yyloop;
1141: }
1142: if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
1143: yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
1144: {
1145: yyn = yytable[yyn];
1146: goto yyreduce;
1147: }
1148: if (yyerrflag) goto yyinrecovery;
1149: #if defined(lint) || defined(__GNUC__)
1150: goto yynewerror;
1151: #endif
1152: yynewerror:
1153: yyerror("syntax error");
1154: #if defined(lint) || defined(__GNUC__)
1155: goto yyerrlab;
1156: #endif
1157: yyerrlab:
1158: ++yynerrs;
1159: yyinrecovery:
1160: if (yyerrflag < 3)
1161: {
1162: yyerrflag = 3;
1163: for (;;)
1164: {
1165: if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
1166: yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
1167: {
1168: #if YYDEBUG
1169: if (yydebug)
1170: printf("%sdebug: state %d, error recovery shifting\
1171: to state %d\n", YYPREFIX, *yyssp, yytable[yyn]);
1172: #endif
1173: if (yyssp >= yysslim && yygrowstack())
1174: {
1175: goto yyoverflow;
1176: }
1177: *++yyssp = yystate = yytable[yyn];
1178: *++yyvsp = yylval;
1179: goto yyloop;
1180: }
1181: else
1182: {
1183: #if YYDEBUG
1184: if (yydebug)
1185: printf("%sdebug: error recovery discarding state %d\n",
1186: YYPREFIX, *yyssp);
1187: #endif
1188: if (yyssp <= yyss) goto yyabort;
1189: --yyssp;
1190: --yyvsp;
1191: }
1192: }
1193: }
1194: else
1195: {
1196: if (yychar == 0) goto yyabort;
1197: #if YYDEBUG
1198: if (yydebug)
1199: {
1200: yys = 0;
1201: if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
1202: if (!yys) yys = "illegal-symbol";
1203: printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
1204: YYPREFIX, yystate, yychar, yys);
1205: }
1206: #endif
1207: yychar = (-1);
1208: goto yyloop;
1209: }
1210: yyreduce:
1211: #if YYDEBUG
1212: if (yydebug)
1213: printf("%sdebug: state %d, reducing by rule %d (%s)\n",
1214: YYPREFIX, yystate, yyn, yyrule[yyn]);
1215: #endif
1216: yym = yylen[yyn];
1217: if (yym)
1218: yyval = yyvsp[1-yym];
1219: else
1220: memset(&yyval, 0, sizeof yyval);
1221: switch (yyn)
1222: {
1223: case 3:
1224: #line 125 "getdate.y"
1225: {
1226: yyHaveTime++;
1227: }
1228: break;
1229: case 4:
1230: #line 128 "getdate.y"
1231: {
1232: yyHaveZone++;
1233: }
1234: break;
1235: case 5:
1236: #line 131 "getdate.y"
1237: {
1238: yyHaveDate++;
1239: }
1240: break;
1241: case 6:
1242: #line 134 "getdate.y"
1243: {
1244: yyHaveDay++;
1245: }
1246: break;
1247: case 7:
1248: #line 137 "getdate.y"
1249: {
1250: yyHaveRel++;
1251: }
1252: break;
1253: case 9:
1254: #line 143 "getdate.y"
1255: {
1256: yyHour = yyvsp[-1].Number;
1257: yyMinutes = 0;
1258: yySeconds = 0;
1259: yyMeridian = yyvsp[0].Meridian;
1260: }
1261: break;
1262: case 10:
1263: #line 149 "getdate.y"
1264: {
1265: yyHour = yyvsp[-3].Number;
1266: yyMinutes = yyvsp[-1].Number;
1267: yySeconds = 0;
1268: yyMeridian = yyvsp[0].Meridian;
1269: }
1270: break;
1271: case 11:
1272: #line 155 "getdate.y"
1273: {
1274: yyHour = yyvsp[-3].Number;
1275: yyMinutes = yyvsp[-1].Number;
1276: yyMeridian = MER24;
1277: yyDSTmode = DSToff;
1278: yyTimezone = - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60);
1279: }
1280: break;
1281: case 12:
1282: #line 162 "getdate.y"
1283: {
1284: yyHour = yyvsp[-5].Number;
1285: yyMinutes = yyvsp[-3].Number;
1286: yySeconds = yyvsp[-1].Number;
1287: yyMeridian = yyvsp[0].Meridian;
1288: }
1289: break;
1290: case 13:
1291: #line 168 "getdate.y"
1292: {
1293: yyHour = yyvsp[-5].Number;
1294: yyMinutes = yyvsp[-3].Number;
1295: yySeconds = yyvsp[-1].Number;
1296: yyMeridian = MER24;
1297: yyDSTmode = DSToff;
1298: yyTimezone = - (yyvsp[0].Number % 100 + (yyvsp[0].Number / 100) * 60);
1299: }
1300: break;
1301: case 14:
1302: #line 178 "getdate.y"
1303: {
1304: yyTimezone = yyvsp[0].Number;
1305: yyDSTmode = DSToff;
1306: }
1307: break;
1308: case 15:
1309: #line 182 "getdate.y"
1310: {
1311: yyTimezone = yyvsp[0].Number;
1312: yyDSTmode = DSTon;
1313: }
1314: break;
1315: case 16:
1316: #line 187 "getdate.y"
1317: {
1318: yyTimezone = yyvsp[-1].Number;
1319: yyDSTmode = DSTon;
1320: }
1321: break;
1322: case 17:
1323: #line 193 "getdate.y"
1324: {
1325: yyDayOrdinal = 1;
1326: yyDayNumber = yyvsp[0].Number;
1327: }
1328: break;
1329: case 18:
1330: #line 197 "getdate.y"
1331: {
1332: yyDayOrdinal = 1;
1333: yyDayNumber = yyvsp[-1].Number;
1334: }
1335: break;
1336: case 19:
1337: #line 201 "getdate.y"
1338: {
1339: yyDayOrdinal = yyvsp[-1].Number;
1340: yyDayNumber = yyvsp[0].Number;
1341: }
1342: break;
1343: case 20:
1344: #line 207 "getdate.y"
1345: {
1346: yyMonth = yyvsp[-2].Number;
1347: yyDay = yyvsp[0].Number;
1348: }
1349: break;
1350: case 21:
1351: #line 211 "getdate.y"
1352: {
1353: if (yyvsp[-4].Number >= 100) {
1354: yyYear = yyvsp[-4].Number;
1355: yyMonth = yyvsp[-2].Number;
1356: yyDay = yyvsp[0].Number;
1357: } else {
1358: yyMonth = yyvsp[-4].Number;
1359: yyDay = yyvsp[-2].Number;
1360: yyYear = yyvsp[0].Number;
1361: }
1362: }
1363: break;
1364: case 22:
1365: #line 222 "getdate.y"
1366: {
1367: /* ISO 8601 format. yyyy-mm-dd. */
1368: yyYear = yyvsp[-2].Number;
1369: yyMonth = -yyvsp[-1].Number;
1370: yyDay = -yyvsp[0].Number;
1371: }
1372: break;
1373: case 23:
1374: #line 228 "getdate.y"
1375: {
1376: /* e.g. 17-JUN-1992. */
1377: yyDay = yyvsp[-2].Number;
1378: yyMonth = yyvsp[-1].Number;
1379: yyYear = -yyvsp[0].Number;
1380: }
1381: break;
1382: case 24:
1383: #line 234 "getdate.y"
1384: {
1385: yyMonth = yyvsp[-1].Number;
1386: yyDay = yyvsp[0].Number;
1387: }
1388: break;
1389: case 25:
1390: #line 238 "getdate.y"
1391: {
1392: yyMonth = yyvsp[-3].Number;
1393: yyDay = yyvsp[-2].Number;
1394: yyYear = yyvsp[0].Number;
1395: }
1396: break;
1397: case 26:
1398: #line 243 "getdate.y"
1399: {
1400: yyMonth = yyvsp[0].Number;
1401: yyDay = yyvsp[-1].Number;
1402: }
1403: break;
1404: case 27:
1405: #line 247 "getdate.y"
1406: {
1407: yyMonth = yyvsp[-1].Number;
1408: yyDay = yyvsp[-2].Number;
1409: yyYear = yyvsp[0].Number;
1410: }
1411: break;
1412: case 28:
1413: #line 254 "getdate.y"
1414: {
1415: yyRelSeconds = -yyRelSeconds;
1416: yyRelMonth = -yyRelMonth;
1417: }
1418: break;
1419: case 30:
1420: #line 261 "getdate.y"
1421: {
1422: yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
1423: }
1424: break;
1425: case 31:
1426: #line 264 "getdate.y"
1427: {
1428: yyRelSeconds += yyvsp[-1].Number * yyvsp[0].Number * 60L;
1429: }
1430: break;
1431: case 32:
1432: #line 267 "getdate.y"
1433: {
1434: yyRelSeconds += yyvsp[0].Number * 60L;
1435: }
1436: break;
1437: case 33:
1438: #line 270 "getdate.y"
1439: {
1440: yyRelSeconds += yyvsp[-1].Number;
1441: }
1442: break;
1443: case 34:
1444: #line 273 "getdate.y"
1445: {
1446: yyRelSeconds += yyvsp[-1].Number;
1447: }
1448: break;
1449: case 35:
1450: #line 276 "getdate.y"
1451: {
1452: yyRelSeconds++;
1453: }
1454: break;
1455: case 36:
1456: #line 279 "getdate.y"
1457: {
1458: yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
1459: }
1460: break;
1461: case 37:
1462: #line 282 "getdate.y"
1463: {
1464: yyRelMonth += yyvsp[-1].Number * yyvsp[0].Number;
1465: }
1466: break;
1467: case 38:
1468: #line 285 "getdate.y"
1469: {
1470: yyRelMonth += yyvsp[0].Number;
1471: }
1472: break;
1473: case 39:
1474: #line 290 "getdate.y"
1475: {
1476: if (yyHaveTime && yyHaveDate && !yyHaveRel)
1477: yyYear = yyvsp[0].Number;
1478: else {
1479: if(yyvsp[0].Number>10000) {
1480: yyHaveDate++;
1481: yyDay= (yyvsp[0].Number)%100;
1482: yyMonth= (yyvsp[0].Number/100)%100;
1483: yyYear = yyvsp[0].Number/10000;
1484: }
1485: else {
1486: yyHaveTime++;
1487: if (yyvsp[0].Number < 100) {
1488: yyHour = yyvsp[0].Number;
1489: yyMinutes = 0;
1490: }
1491: else {
1492: yyHour = yyvsp[0].Number / 100;
1493: yyMinutes = yyvsp[0].Number % 100;
1494: }
1495: yySeconds = 0;
1496: yyMeridian = MER24;
1497: }
1498: }
1499: }
1500: break;
1501: case 40:
1502: #line 317 "getdate.y"
1503: {
1504: yyval.Meridian = MER24;
1505: }
1506: break;
1507: case 41:
1508: #line 320 "getdate.y"
1509: {
1510: yyval.Meridian = yyvsp[0].Meridian;
1511: }
1512: break;
1513: #line 1461 "getdate.c"
1514: }
1515: yyssp -= yym;
1516: yystate = *yyssp;
1517: yyvsp -= yym;
1518: yym = yylhs[yyn];
1519: if (yystate == 0 && yym == 0)
1520: {
1521: #if YYDEBUG
1522: if (yydebug)
1523: printf("%sdebug: after reduction, shifting from state 0 to\
1524: state %d\n", YYPREFIX, YYFINAL);
1525: #endif
1526: yystate = YYFINAL;
1527: *++yyssp = YYFINAL;
1528: *++yyvsp = yyval;
1529: if (yychar < 0)
1530: {
1531: if ((yychar = yylex()) < 0) yychar = 0;
1532: #if YYDEBUG
1533: if (yydebug)
1534: {
1535: yys = 0;
1536: if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
1537: if (!yys) yys = "illegal-symbol";
1538: printf("%sdebug: state %d, reading %d (%s)\n",
1539: YYPREFIX, YYFINAL, yychar, yys);
1540: }
1541: #endif
1542: }
1543: if (yychar == 0) goto yyaccept;
1544: goto yyloop;
1545: }
1546: if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
1547: yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
1548: yystate = yytable[yyn];
1549: else
1550: yystate = yydgoto[yym];
1551: #if YYDEBUG
1552: if (yydebug)
1553: printf("%sdebug: after reduction, shifting from state %d \
1554: to state %d\n", YYPREFIX, *yyssp, yystate);
1555: #endif
1556: if (yyssp >= yysslim && yygrowstack())
1557: {
1558: goto yyoverflow;
1559: }
1560: *++yyssp = yystate;
1561: *++yyvsp = yyval;
1562: goto yyloop;
1563: yyoverflow:
1564: yyerror("yacc stack overflow");
1565: yyabort:
1566: if (yyss)
1567: free(yyss);
1568: if (yyvs)
1569: free(yyvs);
1570: yyss = yyssp = NULL;
1571: yyvs = yyvsp = NULL;
1572: yystacksize = 0;
1573: return (1);
1574: yyaccept:
1575: if (yyss)
1576: free(yyss);
1577: if (yyvs)
1578: free(yyvs);
1579: yyss = yyssp = NULL;
1580: yyvs = yyvsp = NULL;
1581: yystacksize = 0;
1582: return (0);
1583: }
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