Annotation of mandoc/out.c, Revision 1.51
1.51 ! schwarze 1: /* $Id: out.c,v 1.50 2014/08/10 23:54:41 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: #include "config.h"
19:
1.1 kristaps 20: #include <sys/types.h>
21:
1.6 kristaps 22: #include <assert.h>
1.1 kristaps 23: #include <ctype.h>
1.3 kristaps 24: #include <stdio.h>
1.1 kristaps 25: #include <stdlib.h>
1.6 kristaps 26: #include <string.h>
1.7 kristaps 27: #include <time.h>
1.1 kristaps 28:
1.47 schwarze 29: #include "mandoc_aux.h"
1.30 kristaps 30: #include "mandoc.h"
1.1 kristaps 31: #include "out.h"
32:
1.30 kristaps 33: static void tblcalc_data(struct rofftbl *, struct roffcol *,
1.45 schwarze 34: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 35: static void tblcalc_literal(struct rofftbl *, struct roffcol *,
36: const struct tbl_dat *);
37: static void tblcalc_number(struct rofftbl *, struct roffcol *,
1.45 schwarze 38: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 39:
1.48 schwarze 40:
41: /*
1.3 kristaps 42: * Convert a `scaling unit' to a consistent form, or fail. Scaling
1.5 kristaps 43: * units are documented in groff.7, mdoc.7, man.7.
1.3 kristaps 44: */
1.1 kristaps 45: int
1.5 kristaps 46: a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
1.1 kristaps 47: {
1.4 kristaps 48: char buf[BUFSIZ], hasd;
1.1 kristaps 49: int i;
1.3 kristaps 50: enum roffscale unit;
1.1 kristaps 51:
1.5 kristaps 52: if ('\0' == *src)
53: return(0);
54:
1.4 kristaps 55: i = hasd = 0;
56:
57: switch (*src) {
1.48 schwarze 58: case '+':
1.4 kristaps 59: src++;
60: break;
1.48 schwarze 61: case '-':
1.4 kristaps 62: buf[i++] = *src++;
63: break;
64: default:
65: break;
66: }
67:
1.5 kristaps 68: if ('\0' == *src)
69: return(0);
70:
1.4 kristaps 71: while (i < BUFSIZ) {
1.42 kristaps 72: if ( ! isdigit((unsigned char)*src)) {
1.4 kristaps 73: if ('.' != *src)
74: break;
75: else if (hasd)
76: break;
77: else
78: hasd = 1;
79: }
80: buf[i++] = *src++;
81: }
1.1 kristaps 82:
1.3 kristaps 83: if (BUFSIZ == i || (*src && *(src + 1)))
1.1 kristaps 84: return(0);
85:
1.4 kristaps 86: buf[i] = '\0';
1.1 kristaps 87:
1.3 kristaps 88: switch (*src) {
1.48 schwarze 89: case 'c':
1.3 kristaps 90: unit = SCALE_CM;
91: break;
1.48 schwarze 92: case 'i':
1.3 kristaps 93: unit = SCALE_IN;
94: break;
1.48 schwarze 95: case 'P':
1.3 kristaps 96: unit = SCALE_PC;
97: break;
1.48 schwarze 98: case 'p':
1.3 kristaps 99: unit = SCALE_PT;
100: break;
1.48 schwarze 101: case 'f':
1.3 kristaps 102: unit = SCALE_FS;
103: break;
1.48 schwarze 104: case 'v':
1.3 kristaps 105: unit = SCALE_VS;
106: break;
1.48 schwarze 107: case 'm':
1.3 kristaps 108: unit = SCALE_EM;
109: break;
1.48 schwarze 110: case '\0':
1.5 kristaps 111: if (SCALE_MAX == def)
112: return(0);
1.51 ! schwarze 113: unit = SCALE_EN;
1.5 kristaps 114: break;
1.48 schwarze 115: case 'u':
1.3 kristaps 116: unit = SCALE_BU;
117: break;
1.48 schwarze 118: case 'M':
1.3 kristaps 119: unit = SCALE_MM;
120: break;
1.48 schwarze 121: case 'n':
1.3 kristaps 122: unit = SCALE_EN;
123: break;
124: default:
1.1 kristaps 125: return(0);
1.3 kristaps 126: }
1.1 kristaps 127:
1.23 kristaps 128: /* FIXME: do this in the caller. */
1.49 schwarze 129: if ((dst->scale = atof(buf)) < 0.0)
130: dst->scale = 0.0;
1.3 kristaps 131: dst->unit = unit;
132: return(1);
1.8 kristaps 133: }
1.30 kristaps 134:
135: /*
136: * Calculate the abstract widths and decimal positions of columns in a
137: * table. This routine allocates the columns structures then runs over
138: * all rows and cells in the table. The function pointers in "tbl" are
139: * used for the actual width calculations.
140: */
141: void
142: tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
143: {
144: const struct tbl_dat *dp;
145: struct roffcol *col;
1.43 schwarze 146: int spans;
1.30 kristaps 147:
148: /*
149: * Allocate the master column specifiers. These will hold the
150: * widths and decimal positions for all cells in the column. It
151: * must be freed and nullified by the caller.
152: */
153:
154: assert(NULL == tbl->cols);
1.48 schwarze 155: tbl->cols = mandoc_calloc((size_t)sp->opts->cols,
156: sizeof(struct roffcol));
1.30 kristaps 157:
158: for ( ; sp; sp = sp->next) {
159: if (TBL_SPAN_DATA != sp->pos)
160: continue;
1.43 schwarze 161: spans = 1;
1.30 kristaps 162: /*
163: * Account for the data cells in the layout, matching it
164: * to data cells in the data section.
165: */
166: for (dp = sp->first; dp; dp = dp->next) {
1.43 schwarze 167: /* Do not used spanned cells in the calculation. */
168: if (0 < --spans)
169: continue;
170: spans = dp->spans;
171: if (1 < spans)
172: continue;
1.33 kristaps 173: assert(dp->layout);
1.30 kristaps 174: col = &tbl->cols[dp->layout->head->ident];
1.45 schwarze 175: tblcalc_data(tbl, col, sp->opts, dp);
1.30 kristaps 176: }
177: }
178: }
179:
180: static void
181: tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 182: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 183: {
184: size_t sz;
185:
186: /* Branch down into data sub-types. */
187:
188: switch (dp->layout->pos) {
1.48 schwarze 189: case TBL_CELL_HORIZ:
1.30 kristaps 190: /* FALLTHROUGH */
1.48 schwarze 191: case TBL_CELL_DHORIZ:
1.30 kristaps 192: sz = (*tbl->len)(1, tbl->arg);
193: if (col->width < sz)
194: col->width = sz;
195: break;
1.48 schwarze 196: case TBL_CELL_LONG:
1.30 kristaps 197: /* FALLTHROUGH */
1.48 schwarze 198: case TBL_CELL_CENTRE:
1.30 kristaps 199: /* FALLTHROUGH */
1.48 schwarze 200: case TBL_CELL_LEFT:
1.30 kristaps 201: /* FALLTHROUGH */
1.48 schwarze 202: case TBL_CELL_RIGHT:
1.30 kristaps 203: tblcalc_literal(tbl, col, dp);
204: break;
1.48 schwarze 205: case TBL_CELL_NUMBER:
1.45 schwarze 206: tblcalc_number(tbl, col, opts, dp);
1.35 kristaps 207: break;
1.48 schwarze 208: case TBL_CELL_DOWN:
1.30 kristaps 209: break;
210: default:
211: abort();
212: /* NOTREACHED */
213: }
214: }
215:
216: static void
217: tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
218: const struct tbl_dat *dp)
219: {
1.43 schwarze 220: size_t sz;
1.34 kristaps 221: const char *str;
1.30 kristaps 222:
1.34 kristaps 223: str = dp->string ? dp->string : "";
224: sz = (*tbl->slen)(str, tbl->arg);
225:
1.30 kristaps 226: if (col->width < sz)
227: col->width = sz;
228: }
229:
230: static void
231: tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 232: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 233: {
1.48 schwarze 234: int i;
1.34 kristaps 235: size_t sz, psz, ssz, d;
236: const char *str;
1.30 kristaps 237: char *cp;
238: char buf[2];
239:
240: /*
241: * First calculate number width and decimal place (last + 1 for
1.43 schwarze 242: * non-decimal numbers). If the stored decimal is subsequent to
1.30 kristaps 243: * ours, make our size longer by that difference
244: * (right-"shifting"); similarly, if ours is subsequent the
245: * stored, then extend the stored size by the difference.
246: * Finally, re-assign the stored values.
247: */
248:
1.34 kristaps 249: str = dp->string ? dp->string : "";
250: sz = (*tbl->slen)(str, tbl->arg);
1.30 kristaps 251:
1.34 kristaps 252: /* FIXME: TBL_DATA_HORIZ et al.? */
1.30 kristaps 253:
1.45 schwarze 254: buf[0] = opts->decimal;
1.30 kristaps 255: buf[1] = '\0';
256:
257: psz = (*tbl->slen)(buf, tbl->arg);
258:
1.45 schwarze 259: if (NULL != (cp = strrchr(str, opts->decimal))) {
1.30 kristaps 260: buf[1] = '\0';
261: for (ssz = 0, i = 0; cp != &str[i]; i++) {
262: buf[0] = str[i];
263: ssz += (*tbl->slen)(buf, tbl->arg);
264: }
265: d = ssz + psz;
266: } else
267: d = sz + psz;
268:
269: /* Adjust the settings for this column. */
270:
271: if (col->decimal > d) {
272: sz += col->decimal - d;
273: d = col->decimal;
274: } else
275: col->width += d - col->decimal;
276:
277: if (sz > col->width)
278: col->width = sz;
279: if (d > col->decimal)
280: col->decimal = d;
281: }
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