Annotation of mandoc/out.c, Revision 1.47
1.47 ! schwarze 1: /* $Id: out.c,v 1.46 2013/10/05 20:30:05 schwarze Exp $ */
1.1 kristaps 2: /*
1.36 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.37 schwarze 4: * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 kristaps 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.12 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.1 kristaps 22: #include <sys/types.h>
23:
1.6 kristaps 24: #include <assert.h>
1.1 kristaps 25: #include <ctype.h>
1.3 kristaps 26: #include <stdio.h>
1.1 kristaps 27: #include <stdlib.h>
1.6 kristaps 28: #include <string.h>
1.7 kristaps 29: #include <time.h>
1.1 kristaps 30:
1.47 ! schwarze 31: #include "mandoc_aux.h"
1.30 kristaps 32: #include "mandoc.h"
1.1 kristaps 33: #include "out.h"
34:
1.30 kristaps 35: static void tblcalc_data(struct rofftbl *, struct roffcol *,
1.45 schwarze 36: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 37: static void tblcalc_literal(struct rofftbl *, struct roffcol *,
38: const struct tbl_dat *);
39: static void tblcalc_number(struct rofftbl *, struct roffcol *,
1.45 schwarze 40: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 41:
1.3 kristaps 42: /*
43: * Convert a `scaling unit' to a consistent form, or fail. Scaling
1.5 kristaps 44: * units are documented in groff.7, mdoc.7, man.7.
1.3 kristaps 45: */
1.1 kristaps 46: int
1.5 kristaps 47: a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
1.1 kristaps 48: {
1.4 kristaps 49: char buf[BUFSIZ], hasd;
1.1 kristaps 50: int i;
1.3 kristaps 51: enum roffscale unit;
1.1 kristaps 52:
1.5 kristaps 53: if ('\0' == *src)
54: return(0);
55:
1.4 kristaps 56: i = hasd = 0;
57:
58: switch (*src) {
59: case ('+'):
60: src++;
61: break;
62: case ('-'):
63: buf[i++] = *src++;
64: break;
65: default:
66: break;
67: }
68:
1.5 kristaps 69: if ('\0' == *src)
70: return(0);
71:
1.4 kristaps 72: while (i < BUFSIZ) {
1.42 kristaps 73: if ( ! isdigit((unsigned char)*src)) {
1.4 kristaps 74: if ('.' != *src)
75: break;
76: else if (hasd)
77: break;
78: else
79: hasd = 1;
80: }
81: buf[i++] = *src++;
82: }
1.1 kristaps 83:
1.3 kristaps 84: if (BUFSIZ == i || (*src && *(src + 1)))
1.1 kristaps 85: return(0);
86:
1.4 kristaps 87: buf[i] = '\0';
1.1 kristaps 88:
1.3 kristaps 89: switch (*src) {
90: case ('c'):
91: unit = SCALE_CM;
92: break;
93: case ('i'):
94: unit = SCALE_IN;
95: break;
96: case ('P'):
97: unit = SCALE_PC;
98: break;
99: case ('p'):
100: unit = SCALE_PT;
101: break;
102: case ('f'):
103: unit = SCALE_FS;
104: break;
105: case ('v'):
106: unit = SCALE_VS;
107: break;
108: case ('m'):
109: unit = SCALE_EM;
110: break;
111: case ('\0'):
1.5 kristaps 112: if (SCALE_MAX == def)
113: return(0);
114: unit = SCALE_BU;
115: break;
1.3 kristaps 116: case ('u'):
117: unit = SCALE_BU;
118: break;
119: case ('M'):
120: unit = SCALE_MM;
121: break;
122: case ('n'):
123: unit = SCALE_EN;
124: break;
125: default:
1.1 kristaps 126: return(0);
1.3 kristaps 127: }
1.1 kristaps 128:
1.23 kristaps 129: /* FIXME: do this in the caller. */
1.4 kristaps 130: if ((dst->scale = atof(buf)) < 0)
1.3 kristaps 131: dst->scale = 0;
132: dst->unit = unit;
133: return(1);
1.8 kristaps 134: }
1.30 kristaps 135:
136: /*
137: * Calculate the abstract widths and decimal positions of columns in a
138: * table. This routine allocates the columns structures then runs over
139: * all rows and cells in the table. The function pointers in "tbl" are
140: * used for the actual width calculations.
141: */
142: void
143: tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
144: {
145: const struct tbl_dat *dp;
146: struct roffcol *col;
1.43 schwarze 147: int spans;
1.30 kristaps 148:
149: /*
150: * Allocate the master column specifiers. These will hold the
151: * widths and decimal positions for all cells in the column. It
152: * must be freed and nullified by the caller.
153: */
154:
155: assert(NULL == tbl->cols);
1.39 kristaps 156: tbl->cols = mandoc_calloc
1.45 schwarze 157: ((size_t)sp->opts->cols, sizeof(struct roffcol));
1.30 kristaps 158:
159: for ( ; sp; sp = sp->next) {
160: if (TBL_SPAN_DATA != sp->pos)
161: continue;
1.43 schwarze 162: spans = 1;
1.30 kristaps 163: /*
164: * Account for the data cells in the layout, matching it
165: * to data cells in the data section.
166: */
167: for (dp = sp->first; dp; dp = dp->next) {
1.43 schwarze 168: /* Do not used spanned cells in the calculation. */
169: if (0 < --spans)
170: continue;
171: spans = dp->spans;
172: if (1 < spans)
173: continue;
1.33 kristaps 174: assert(dp->layout);
1.30 kristaps 175: col = &tbl->cols[dp->layout->head->ident];
1.45 schwarze 176: tblcalc_data(tbl, col, sp->opts, dp);
1.30 kristaps 177: }
178: }
179: }
180:
181: static void
182: tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 183: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 184: {
185: size_t sz;
186:
187: /* Branch down into data sub-types. */
188:
189: switch (dp->layout->pos) {
190: case (TBL_CELL_HORIZ):
191: /* FALLTHROUGH */
192: case (TBL_CELL_DHORIZ):
193: sz = (*tbl->len)(1, tbl->arg);
194: if (col->width < sz)
195: col->width = sz;
196: break;
197: case (TBL_CELL_LONG):
198: /* FALLTHROUGH */
199: case (TBL_CELL_CENTRE):
200: /* FALLTHROUGH */
201: case (TBL_CELL_LEFT):
202: /* FALLTHROUGH */
203: case (TBL_CELL_RIGHT):
204: tblcalc_literal(tbl, col, dp);
205: break;
206: case (TBL_CELL_NUMBER):
1.45 schwarze 207: tblcalc_number(tbl, col, opts, dp);
1.35 kristaps 208: break;
209: case (TBL_CELL_DOWN):
1.30 kristaps 210: break;
211: default:
212: abort();
213: /* NOTREACHED */
214: }
215: }
216:
217: static void
218: tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
219: const struct tbl_dat *dp)
220: {
1.43 schwarze 221: size_t sz;
1.34 kristaps 222: const char *str;
1.30 kristaps 223:
1.34 kristaps 224: str = dp->string ? dp->string : "";
225: sz = (*tbl->slen)(str, tbl->arg);
226:
1.30 kristaps 227: if (col->width < sz)
228: col->width = sz;
229: }
230:
231: static void
232: tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 233: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 234: {
235: int i;
1.34 kristaps 236: size_t sz, psz, ssz, d;
237: const char *str;
1.30 kristaps 238: char *cp;
239: char buf[2];
240:
241: /*
242: * First calculate number width and decimal place (last + 1 for
1.43 schwarze 243: * non-decimal numbers). If the stored decimal is subsequent to
1.30 kristaps 244: * ours, make our size longer by that difference
245: * (right-"shifting"); similarly, if ours is subsequent the
246: * stored, then extend the stored size by the difference.
247: * Finally, re-assign the stored values.
248: */
249:
1.34 kristaps 250: str = dp->string ? dp->string : "";
251: sz = (*tbl->slen)(str, tbl->arg);
1.30 kristaps 252:
1.34 kristaps 253: /* FIXME: TBL_DATA_HORIZ et al.? */
1.30 kristaps 254:
1.45 schwarze 255: buf[0] = opts->decimal;
1.30 kristaps 256: buf[1] = '\0';
257:
258: psz = (*tbl->slen)(buf, tbl->arg);
259:
1.45 schwarze 260: if (NULL != (cp = strrchr(str, opts->decimal))) {
1.30 kristaps 261: buf[1] = '\0';
262: for (ssz = 0, i = 0; cp != &str[i]; i++) {
263: buf[0] = str[i];
264: ssz += (*tbl->slen)(buf, tbl->arg);
265: }
266: d = ssz + psz;
267: } else
268: d = sz + psz;
269:
270: /* Adjust the settings for this column. */
271:
272: if (col->decimal > d) {
273: sz += col->decimal - d;
274: d = col->decimal;
275: } else
276: col->width += d - col->decimal;
277:
278: if (sz > col->width)
279: col->width = sz;
280: if (d > col->decimal)
281: col->decimal = d;
282: }
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