=================================================================== RCS file: /cvs/mandoc/out.c,v retrieving revision 1.5 retrieving revision 1.43 diff -u -p -r1.5 -r1.43 --- mandoc/out.c 2009/10/18 19:02:10 1.5 +++ mandoc/out.c 2011/09/20 23:05:49 1.43 @@ -1,6 +1,7 @@ -/* $Id: out.c,v 1.5 2009/10/18 19:02:10 kristaps Exp $ */ +/* $Id: out.c,v 1.43 2011/09/20 23:05:49 schwarze Exp $ */ /* - * Copyright (c) 2009 Kristaps Dzonsons + * 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 @@ -14,14 +15,28 @@ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #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 @@ -54,7 +69,7 @@ a2roffsu(const char *src, struct roffsu *dst, enum rof return(0); while (i < BUFSIZ) { - if ( ! isdigit((u_char)*src)) { + if ( ! isdigit((unsigned char)*src)) { if ('.' != *src) break; else if (hasd) @@ -110,10 +125,179 @@ a2roffsu(const char *src, struct roffsu *dst, enum rof return(0); } + /* FIXME: do this in the caller. */ if ((dst->scale = atof(buf)) < 0) dst->scale = 0; dst->unit = unit; - dst->pt = hasd; - 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); + } + } + + /* + * Calculate width of the spanners. These get one space for a + * vertical line, two for a double-vertical line. + */ + + for ( ; hp; hp = hp->next) { + col = &tbl->cols[hp->ident]; + switch (hp->pos) { + case (TBL_HEAD_VERT): + col->width = (*tbl->len)(1, tbl->arg); + break; + case (TBL_HEAD_DVERT): + col->width = (*tbl->len)(2, tbl->arg); + break; + default: + break; + } + } +} + +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; }