/* $Id: out.c,v 1.17 2012/05/26 20:03:34 schwarze Exp $ */ /* * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons * Copyright (c) 2011 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #include #include #include #include #include "mandoc.h" #include "out.h" static void tblcalc_data(struct rofftbl *, struct roffcol *, const struct tbl *, const struct tbl_dat *); static void tblcalc_literal(struct rofftbl *, struct roffcol *, const struct tbl_dat *); static void tblcalc_number(struct rofftbl *, struct roffcol *, const struct tbl *, const struct tbl_dat *); /* * Convert a `scaling unit' to a consistent form, or fail. Scaling * units are documented in groff.7, mdoc.7, man.7. */ int a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) { char buf[BUFSIZ], hasd; int i; enum roffscale unit; if ('\0' == *src) return(0); i = hasd = 0; switch (*src) { case ('+'): src++; break; case ('-'): buf[i++] = *src++; break; default: break; } if ('\0' == *src) return(0); while (i < BUFSIZ) { if ( ! isdigit((unsigned char)*src)) { if ('.' != *src) break; else if (hasd) break; else hasd = 1; } buf[i++] = *src++; } if (BUFSIZ == i || (*src && *(src + 1))) return(0); buf[i] = '\0'; switch (*src) { case ('c'): unit = SCALE_CM; break; case ('i'): unit = SCALE_IN; break; case ('P'): unit = SCALE_PC; break; case ('p'): unit = SCALE_PT; break; case ('f'): unit = SCALE_FS; break; case ('v'): unit = SCALE_VS; break; case ('m'): unit = SCALE_EM; break; case ('\0'): if (SCALE_MAX == def) return(0); unit = SCALE_BU; break; case ('u'): unit = SCALE_BU; break; case ('M'): unit = SCALE_MM; break; case ('n'): unit = SCALE_EN; break; default: return(0); } /* FIXME: do this in the caller. */ if ((dst->scale = atof(buf)) < 0) dst->scale = 0; dst->unit = unit; return(1); } /* * Calculate the abstract widths and decimal positions of columns in a * table. This routine allocates the columns structures then runs over * all rows and cells in the table. The function pointers in "tbl" are * used for the actual width calculations. */ void tblcalc(struct rofftbl *tbl, const struct tbl_span *sp) { const struct tbl_dat *dp; const struct tbl_head *hp; struct roffcol *col; int spans; /* * Allocate the master column specifiers. These will hold the * widths and decimal positions for all cells in the column. It * must be freed and nullified by the caller. */ assert(NULL == tbl->cols); tbl->cols = mandoc_calloc ((size_t)sp->tbl->cols, sizeof(struct roffcol)); hp = sp->head; for ( ; sp; sp = sp->next) { if (TBL_SPAN_DATA != sp->pos) continue; spans = 1; /* * Account for the data cells in the layout, matching it * to data cells in the data section. */ for (dp = sp->first; dp; dp = dp->next) { /* Do not used spanned cells in the calculation. */ if (0 < --spans) continue; spans = dp->spans; if (1 < spans) continue; assert(dp->layout); col = &tbl->cols[dp->layout->head->ident]; tblcalc_data(tbl, col, sp->tbl, dp); } } } static void tblcalc_data(struct rofftbl *tbl, struct roffcol *col, const struct tbl *tp, const struct tbl_dat *dp) { size_t sz; /* Branch down into data sub-types. */ switch (dp->layout->pos) { case (TBL_CELL_HORIZ): /* FALLTHROUGH */ case (TBL_CELL_DHORIZ): sz = (*tbl->len)(1, tbl->arg); if (col->width < sz) col->width = sz; break; case (TBL_CELL_LONG): /* FALLTHROUGH */ case (TBL_CELL_CENTRE): /* FALLTHROUGH */ case (TBL_CELL_LEFT): /* FALLTHROUGH */ case (TBL_CELL_RIGHT): tblcalc_literal(tbl, col, dp); break; case (TBL_CELL_NUMBER): tblcalc_number(tbl, col, tp, dp); break; case (TBL_CELL_DOWN): break; default: abort(); /* NOTREACHED */ } } static void tblcalc_literal(struct rofftbl *tbl, struct roffcol *col, const struct tbl_dat *dp) { size_t sz; const char *str; str = dp->string ? dp->string : ""; sz = (*tbl->slen)(str, tbl->arg); if (col->width < sz) col->width = sz; } static void tblcalc_number(struct rofftbl *tbl, struct roffcol *col, const struct tbl *tp, const struct tbl_dat *dp) { int i; size_t sz, psz, ssz, d; const char *str; char *cp; char buf[2]; /* * First calculate number width and decimal place (last + 1 for * non-decimal numbers). If the stored decimal is subsequent to * ours, make our size longer by that difference * (right-"shifting"); similarly, if ours is subsequent the * stored, then extend the stored size by the difference. * Finally, re-assign the stored values. */ str = dp->string ? dp->string : ""; sz = (*tbl->slen)(str, tbl->arg); /* FIXME: TBL_DATA_HORIZ et al.? */ buf[0] = tp->decimal; buf[1] = '\0'; psz = (*tbl->slen)(buf, tbl->arg); if (NULL != (cp = strrchr(str, tp->decimal))) { buf[1] = '\0'; for (ssz = 0, i = 0; cp != &str[i]; i++) { buf[0] = str[i]; ssz += (*tbl->slen)(buf, tbl->arg); } d = ssz + psz; } else d = sz + psz; /* Adjust the settings for this column. */ if (col->decimal > d) { sz += col->decimal - d; d = col->decimal; } else col->width += d - col->decimal; if (sz > col->width) col->width = sz; if (d > col->decimal) col->decimal = d; }