Annotation of mandoc/out.c, Revision 1.49
1.49 ! schwarze 1: /* $Id: out.c,v 1.48 2014/04/20 16:46:05 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:
1.48 schwarze 42:
43: /*
1.3 kristaps 44: * Convert a `scaling unit' to a consistent form, or fail. Scaling
1.5 kristaps 45: * units are documented in groff.7, mdoc.7, man.7.
1.3 kristaps 46: */
1.1 kristaps 47: int
1.5 kristaps 48: a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
1.1 kristaps 49: {
1.4 kristaps 50: char buf[BUFSIZ], hasd;
1.1 kristaps 51: int i;
1.3 kristaps 52: enum roffscale unit;
1.1 kristaps 53:
1.5 kristaps 54: if ('\0' == *src)
55: return(0);
56:
1.4 kristaps 57: i = hasd = 0;
58:
59: switch (*src) {
1.48 schwarze 60: case '+':
1.4 kristaps 61: src++;
62: break;
1.48 schwarze 63: case '-':
1.4 kristaps 64: buf[i++] = *src++;
65: break;
66: default:
67: break;
68: }
69:
1.5 kristaps 70: if ('\0' == *src)
71: return(0);
72:
1.4 kristaps 73: while (i < BUFSIZ) {
1.42 kristaps 74: if ( ! isdigit((unsigned char)*src)) {
1.4 kristaps 75: if ('.' != *src)
76: break;
77: else if (hasd)
78: break;
79: else
80: hasd = 1;
81: }
82: buf[i++] = *src++;
83: }
1.1 kristaps 84:
1.3 kristaps 85: if (BUFSIZ == i || (*src && *(src + 1)))
1.1 kristaps 86: return(0);
87:
1.4 kristaps 88: buf[i] = '\0';
1.1 kristaps 89:
1.3 kristaps 90: switch (*src) {
1.48 schwarze 91: case 'c':
1.3 kristaps 92: unit = SCALE_CM;
93: break;
1.48 schwarze 94: case 'i':
1.3 kristaps 95: unit = SCALE_IN;
96: break;
1.48 schwarze 97: case 'P':
1.3 kristaps 98: unit = SCALE_PC;
99: break;
1.48 schwarze 100: case 'p':
1.3 kristaps 101: unit = SCALE_PT;
102: break;
1.48 schwarze 103: case 'f':
1.3 kristaps 104: unit = SCALE_FS;
105: break;
1.48 schwarze 106: case 'v':
1.3 kristaps 107: unit = SCALE_VS;
108: break;
1.48 schwarze 109: case 'm':
1.3 kristaps 110: unit = SCALE_EM;
111: break;
1.48 schwarze 112: case '\0':
1.5 kristaps 113: if (SCALE_MAX == def)
114: return(0);
115: unit = SCALE_BU;
116: break;
1.48 schwarze 117: case 'u':
1.3 kristaps 118: unit = SCALE_BU;
119: break;
1.48 schwarze 120: case 'M':
1.3 kristaps 121: unit = SCALE_MM;
122: break;
1.48 schwarze 123: case 'n':
1.3 kristaps 124: unit = SCALE_EN;
125: break;
126: default:
1.1 kristaps 127: return(0);
1.3 kristaps 128: }
1.1 kristaps 129:
1.23 kristaps 130: /* FIXME: do this in the caller. */
1.49 ! schwarze 131: if ((dst->scale = atof(buf)) < 0.0)
! 132: dst->scale = 0.0;
1.3 kristaps 133: dst->unit = unit;
134: return(1);
1.8 kristaps 135: }
1.30 kristaps 136:
137: /*
138: * Calculate the abstract widths and decimal positions of columns in a
139: * table. This routine allocates the columns structures then runs over
140: * all rows and cells in the table. The function pointers in "tbl" are
141: * used for the actual width calculations.
142: */
143: void
144: tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
145: {
146: const struct tbl_dat *dp;
147: struct roffcol *col;
1.43 schwarze 148: int spans;
1.30 kristaps 149:
150: /*
151: * Allocate the master column specifiers. These will hold the
152: * widths and decimal positions for all cells in the column. It
153: * must be freed and nullified by the caller.
154: */
155:
156: assert(NULL == tbl->cols);
1.48 schwarze 157: tbl->cols = mandoc_calloc((size_t)sp->opts->cols,
158: sizeof(struct roffcol));
1.30 kristaps 159:
160: for ( ; sp; sp = sp->next) {
161: if (TBL_SPAN_DATA != sp->pos)
162: continue;
1.43 schwarze 163: spans = 1;
1.30 kristaps 164: /*
165: * Account for the data cells in the layout, matching it
166: * to data cells in the data section.
167: */
168: for (dp = sp->first; dp; dp = dp->next) {
1.43 schwarze 169: /* Do not used spanned cells in the calculation. */
170: if (0 < --spans)
171: continue;
172: spans = dp->spans;
173: if (1 < spans)
174: continue;
1.33 kristaps 175: assert(dp->layout);
1.30 kristaps 176: col = &tbl->cols[dp->layout->head->ident];
1.45 schwarze 177: tblcalc_data(tbl, col, sp->opts, dp);
1.30 kristaps 178: }
179: }
180: }
181:
182: static void
183: tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 184: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 185: {
186: size_t sz;
187:
188: /* Branch down into data sub-types. */
189:
190: switch (dp->layout->pos) {
1.48 schwarze 191: case TBL_CELL_HORIZ:
1.30 kristaps 192: /* FALLTHROUGH */
1.48 schwarze 193: case TBL_CELL_DHORIZ:
1.30 kristaps 194: sz = (*tbl->len)(1, tbl->arg);
195: if (col->width < sz)
196: col->width = sz;
197: break;
1.48 schwarze 198: case TBL_CELL_LONG:
1.30 kristaps 199: /* FALLTHROUGH */
1.48 schwarze 200: case TBL_CELL_CENTRE:
1.30 kristaps 201: /* FALLTHROUGH */
1.48 schwarze 202: case TBL_CELL_LEFT:
1.30 kristaps 203: /* FALLTHROUGH */
1.48 schwarze 204: case TBL_CELL_RIGHT:
1.30 kristaps 205: tblcalc_literal(tbl, col, dp);
206: break;
1.48 schwarze 207: case TBL_CELL_NUMBER:
1.45 schwarze 208: tblcalc_number(tbl, col, opts, dp);
1.35 kristaps 209: break;
1.48 schwarze 210: case TBL_CELL_DOWN:
1.30 kristaps 211: break;
212: default:
213: abort();
214: /* NOTREACHED */
215: }
216: }
217:
218: static void
219: tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
220: const struct tbl_dat *dp)
221: {
1.43 schwarze 222: size_t sz;
1.34 kristaps 223: const char *str;
1.30 kristaps 224:
1.34 kristaps 225: str = dp->string ? dp->string : "";
226: sz = (*tbl->slen)(str, tbl->arg);
227:
1.30 kristaps 228: if (col->width < sz)
229: col->width = sz;
230: }
231:
232: static void
233: tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 234: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 235: {
1.48 schwarze 236: int i;
1.34 kristaps 237: size_t sz, psz, ssz, d;
238: const char *str;
1.30 kristaps 239: char *cp;
240: char buf[2];
241:
242: /*
243: * First calculate number width and decimal place (last + 1 for
1.43 schwarze 244: * non-decimal numbers). If the stored decimal is subsequent to
1.30 kristaps 245: * ours, make our size longer by that difference
246: * (right-"shifting"); similarly, if ours is subsequent the
247: * stored, then extend the stored size by the difference.
248: * Finally, re-assign the stored values.
249: */
250:
1.34 kristaps 251: str = dp->string ? dp->string : "";
252: sz = (*tbl->slen)(str, tbl->arg);
1.30 kristaps 253:
1.34 kristaps 254: /* FIXME: TBL_DATA_HORIZ et al.? */
1.30 kristaps 255:
1.45 schwarze 256: buf[0] = opts->decimal;
1.30 kristaps 257: buf[1] = '\0';
258:
259: psz = (*tbl->slen)(buf, tbl->arg);
260:
1.45 schwarze 261: if (NULL != (cp = strrchr(str, opts->decimal))) {
1.30 kristaps 262: buf[1] = '\0';
263: for (ssz = 0, i = 0; cp != &str[i]; i++) {
264: buf[0] = str[i];
265: ssz += (*tbl->slen)(buf, tbl->arg);
266: }
267: d = ssz + psz;
268: } else
269: d = sz + psz;
270:
271: /* Adjust the settings for this column. */
272:
273: if (col->decimal > d) {
274: sz += col->decimal - d;
275: d = col->decimal;
276: } else
277: col->width += d - col->decimal;
278:
279: if (sz > col->width)
280: col->width = sz;
281: if (d > col->decimal)
282: col->decimal = d;
283: }
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