Annotation of mandoc/out.c, Revision 1.55
1.55 ! schwarze 1: /* $Id: out.c,v 1.54 2014/12/04 02:05:42 schwarze Exp $ */
1.1 kristaps 2: /*
1.36 schwarze 3: * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.52 schwarze 4: * Copyright (c) 2011, 2014 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 <stdlib.h>
1.6 kristaps 24: #include <string.h>
1.7 kristaps 25: #include <time.h>
1.1 kristaps 26:
1.47 schwarze 27: #include "mandoc_aux.h"
1.30 kristaps 28: #include "mandoc.h"
1.1 kristaps 29: #include "out.h"
30:
1.30 kristaps 31: static void tblcalc_data(struct rofftbl *, struct roffcol *,
1.45 schwarze 32: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 33: static void tblcalc_literal(struct rofftbl *, struct roffcol *,
34: const struct tbl_dat *);
35: static void tblcalc_number(struct rofftbl *, struct roffcol *,
1.45 schwarze 36: const struct tbl_opts *, const struct tbl_dat *);
1.30 kristaps 37:
1.48 schwarze 38:
39: /*
1.55 ! schwarze 40: * Parse the *src string and store a scaling unit into *dst.
! 41: * If the string doesn't specify the unit, use the default.
! 42: * If no default is specified, fail.
! 43: * Return 1 on success and 0 on failure.
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: {
1.55 ! schwarze 48: char *endptr;
! 49: double scale;
1.3 kristaps 50: enum roffscale unit;
1.1 kristaps 51:
1.55 ! schwarze 52: scale = strtod(src, &endptr);
! 53: if (endptr == src || (endptr[0] != '\0' && endptr[1] != '\0'))
1.5 kristaps 54: return(0);
55:
1.55 ! schwarze 56: switch (*endptr) {
1.48 schwarze 57: case 'c':
1.3 kristaps 58: unit = SCALE_CM;
59: break;
1.48 schwarze 60: case 'i':
1.3 kristaps 61: unit = SCALE_IN;
62: break;
1.48 schwarze 63: case 'P':
1.3 kristaps 64: unit = SCALE_PC;
65: break;
1.48 schwarze 66: case 'p':
1.3 kristaps 67: unit = SCALE_PT;
68: break;
1.48 schwarze 69: case 'f':
1.3 kristaps 70: unit = SCALE_FS;
71: break;
1.48 schwarze 72: case 'v':
1.3 kristaps 73: unit = SCALE_VS;
74: break;
1.48 schwarze 75: case 'm':
1.3 kristaps 76: unit = SCALE_EM;
77: break;
1.48 schwarze 78: case '\0':
1.5 kristaps 79: if (SCALE_MAX == def)
80: return(0);
1.54 schwarze 81: unit = def;
1.5 kristaps 82: break;
1.48 schwarze 83: case 'u':
1.3 kristaps 84: unit = SCALE_BU;
85: break;
1.48 schwarze 86: case 'M':
1.3 kristaps 87: unit = SCALE_MM;
88: break;
1.48 schwarze 89: case 'n':
1.3 kristaps 90: unit = SCALE_EN;
91: break;
92: default:
1.1 kristaps 93: return(0);
1.3 kristaps 94: }
1.1 kristaps 95:
1.23 kristaps 96: /* FIXME: do this in the caller. */
1.55 ! schwarze 97: if (scale < 0.0)
! 98: scale = 0.0;
! 99: dst->scale = scale;
1.3 kristaps 100: dst->unit = unit;
101: return(1);
1.8 kristaps 102: }
1.30 kristaps 103:
104: /*
105: * Calculate the abstract widths and decimal positions of columns in a
106: * table. This routine allocates the columns structures then runs over
107: * all rows and cells in the table. The function pointers in "tbl" are
108: * used for the actual width calculations.
109: */
110: void
1.52 schwarze 111: tblcalc(struct rofftbl *tbl, const struct tbl_span *sp,
112: size_t totalwidth)
1.30 kristaps 113: {
114: const struct tbl_dat *dp;
115: struct roffcol *col;
1.52 schwarze 116: size_t ewidth, xwidth;
1.43 schwarze 117: int spans;
1.52 schwarze 118: int icol, maxcol, necol, nxcol;
1.30 kristaps 119:
120: /*
121: * Allocate the master column specifiers. These will hold the
122: * widths and decimal positions for all cells in the column. It
123: * must be freed and nullified by the caller.
124: */
125:
126: assert(NULL == tbl->cols);
1.48 schwarze 127: tbl->cols = mandoc_calloc((size_t)sp->opts->cols,
128: sizeof(struct roffcol));
1.30 kristaps 129:
1.53 schwarze 130: for (maxcol = -1; sp; sp = sp->next) {
1.30 kristaps 131: if (TBL_SPAN_DATA != sp->pos)
132: continue;
1.43 schwarze 133: spans = 1;
1.30 kristaps 134: /*
135: * Account for the data cells in the layout, matching it
136: * to data cells in the data section.
137: */
138: for (dp = sp->first; dp; dp = dp->next) {
1.43 schwarze 139: /* Do not used spanned cells in the calculation. */
140: if (0 < --spans)
141: continue;
142: spans = dp->spans;
143: if (1 < spans)
144: continue;
1.52 schwarze 145: icol = dp->layout->head->ident;
146: if (maxcol < icol)
147: maxcol = icol;
148: col = tbl->cols + icol;
149: col->flags |= dp->layout->flags;
150: if (dp->layout->flags & TBL_CELL_WIGN)
151: continue;
1.45 schwarze 152: tblcalc_data(tbl, col, sp->opts, dp);
1.52 schwarze 153: }
154: }
155:
156: /*
157: * Count columns to equalize and columns to maximize.
158: * Find maximum width of the columns to equalize.
159: * Find total width of the columns *not* to maximize.
160: */
161:
162: necol = nxcol = 0;
163: ewidth = xwidth = 0;
164: for (icol = 0; icol <= maxcol; icol++) {
165: col = tbl->cols + icol;
166: if (col->flags & TBL_CELL_EQUAL) {
167: necol++;
168: if (ewidth < col->width)
169: ewidth = col->width;
170: }
171: if (col->flags & TBL_CELL_WMAX)
172: nxcol++;
173: else
174: xwidth += col->width;
175: }
176:
177: /*
178: * Equalize columns, if requested for any of them.
179: * Update total width of the columns not to maximize.
180: */
181:
182: if (necol) {
183: for (icol = 0; icol <= maxcol; icol++) {
184: col = tbl->cols + icol;
185: if ( ! (col->flags & TBL_CELL_EQUAL))
186: continue;
187: if (col->width == ewidth)
188: continue;
189: if (nxcol && totalwidth)
190: xwidth += ewidth - col->width;
191: col->width = ewidth;
192: }
193: }
194:
195: /*
196: * If there are any columns to maximize, find the total
197: * available width, deducting 3n margins between columns.
198: * Distribute the available width evenly.
199: */
200:
201: if (nxcol && totalwidth) {
202: xwidth = totalwidth - 3*maxcol - xwidth;
203: for (icol = 0; icol <= maxcol; icol++) {
204: col = tbl->cols + icol;
205: if ( ! (col->flags & TBL_CELL_WMAX))
206: continue;
207: col->width = xwidth / nxcol--;
208: xwidth -= col->width;
1.30 kristaps 209: }
210: }
211: }
212:
213: static void
214: tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 215: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 216: {
217: size_t sz;
218:
219: /* Branch down into data sub-types. */
220:
221: switch (dp->layout->pos) {
1.48 schwarze 222: case TBL_CELL_HORIZ:
1.30 kristaps 223: /* FALLTHROUGH */
1.48 schwarze 224: case TBL_CELL_DHORIZ:
1.30 kristaps 225: sz = (*tbl->len)(1, tbl->arg);
226: if (col->width < sz)
227: col->width = sz;
228: break;
1.48 schwarze 229: case TBL_CELL_LONG:
1.30 kristaps 230: /* FALLTHROUGH */
1.48 schwarze 231: case TBL_CELL_CENTRE:
1.30 kristaps 232: /* FALLTHROUGH */
1.48 schwarze 233: case TBL_CELL_LEFT:
1.30 kristaps 234: /* FALLTHROUGH */
1.48 schwarze 235: case TBL_CELL_RIGHT:
1.30 kristaps 236: tblcalc_literal(tbl, col, dp);
237: break;
1.48 schwarze 238: case TBL_CELL_NUMBER:
1.45 schwarze 239: tblcalc_number(tbl, col, opts, dp);
1.35 kristaps 240: break;
1.48 schwarze 241: case TBL_CELL_DOWN:
1.30 kristaps 242: break;
243: default:
244: abort();
245: /* NOTREACHED */
246: }
247: }
248:
249: static void
250: tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
251: const struct tbl_dat *dp)
252: {
1.43 schwarze 253: size_t sz;
1.34 kristaps 254: const char *str;
1.30 kristaps 255:
1.34 kristaps 256: str = dp->string ? dp->string : "";
257: sz = (*tbl->slen)(str, tbl->arg);
258:
1.30 kristaps 259: if (col->width < sz)
260: col->width = sz;
261: }
262:
263: static void
264: tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
1.45 schwarze 265: const struct tbl_opts *opts, const struct tbl_dat *dp)
1.30 kristaps 266: {
1.48 schwarze 267: int i;
1.34 kristaps 268: size_t sz, psz, ssz, d;
269: const char *str;
1.30 kristaps 270: char *cp;
271: char buf[2];
272:
273: /*
274: * First calculate number width and decimal place (last + 1 for
1.43 schwarze 275: * non-decimal numbers). If the stored decimal is subsequent to
1.30 kristaps 276: * ours, make our size longer by that difference
277: * (right-"shifting"); similarly, if ours is subsequent the
278: * stored, then extend the stored size by the difference.
279: * Finally, re-assign the stored values.
280: */
281:
1.34 kristaps 282: str = dp->string ? dp->string : "";
283: sz = (*tbl->slen)(str, tbl->arg);
1.30 kristaps 284:
1.34 kristaps 285: /* FIXME: TBL_DATA_HORIZ et al.? */
1.30 kristaps 286:
1.45 schwarze 287: buf[0] = opts->decimal;
1.30 kristaps 288: buf[1] = '\0';
289:
290: psz = (*tbl->slen)(buf, tbl->arg);
291:
1.45 schwarze 292: if (NULL != (cp = strrchr(str, opts->decimal))) {
1.30 kristaps 293: buf[1] = '\0';
294: for (ssz = 0, i = 0; cp != &str[i]; i++) {
295: buf[0] = str[i];
296: ssz += (*tbl->slen)(buf, tbl->arg);
297: }
298: d = ssz + psz;
299: } else
300: d = sz + psz;
301:
302: /* Adjust the settings for this column. */
303:
304: if (col->decimal > d) {
305: sz += col->decimal - d;
306: d = col->decimal;
307: } else
308: col->width += d - col->decimal;
309:
310: if (sz > col->width)
311: col->width = sz;
312: if (d > col->decimal)
313: col->decimal = d;
314: }
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