=================================================================== RCS file: /cvs/mandoc/term_ps.c,v retrieving revision 1.59 retrieving revision 1.72 diff -u -p -r1.59 -r1.72 --- mandoc/term_ps.c 2014/04/20 16:46:05 1.59 +++ mandoc/term_ps.c 2015/01/21 19:40:54 1.72 @@ -1,7 +1,7 @@ -/* $Id: term_ps.c,v 1.59 2014/04/20 16:46:05 schwarze Exp $ */ +/* $Id: term_ps.c,v 1.72 2015/01/21 19:40:54 schwarze Exp $ */ /* * Copyright (c) 2010, 2011 Kristaps Dzonsons - * Copyright (c) 2014 Ingo Schwarze + * Copyright (c) 2014, 2015 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 @@ -15,9 +15,7 @@ * 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 @@ -27,14 +25,12 @@ #include #include #include -#include #include -#include "mandoc.h" #include "mandoc_aux.h" #include "out.h" -#include "main.h" #include "term.h" +#include "main.h" /* These work the buffer used by the header and footer. */ #define PS_BUFSLOP 128 @@ -62,13 +58,16 @@ struct termp_ps { #define PS_INLINE (1 << 0) /* we're in a word */ #define PS_MARGINS (1 << 1) /* we're in the margins */ #define PS_NEWPAGE (1 << 2) /* new page, no words yet */ +#define PS_BACKSP (1 << 3) /* last character was backspace */ size_t pscol; /* visible column (AFM units) */ + size_t pscolnext; /* used for overstrike */ size_t psrow; /* visible row (AFM units) */ char *psmarg; /* margin buf */ size_t psmargsz; /* margin buf size */ size_t psmargcur; /* cur index in margin buf */ - char last; /* character buffer */ + char last; /* last non-backspace seen */ enum termfont lastf; /* last set font */ + enum termfont nextf; /* building next font here */ size_t scale; /* font scaling factor */ size_t pages; /* number of pages shown */ size_t lineheight; /* line height (AFM units) */ @@ -107,7 +106,7 @@ static void ps_printf(struct termp *, const char *, static void ps_putchar(struct termp *, char); static void ps_setfont(struct termp *, enum termfont); static void ps_setwidth(struct termp *, int, size_t); -static struct termp *pspdf_alloc(char *); +static struct termp *pspdf_alloc(const struct mchars *, char *); static void pdf_obj(struct termp *, size_t); /* @@ -408,32 +407,129 @@ static const struct font fonts[TERMFONT__MAX] = { { 400 }, { 541 }, } }, + { "Times-BoldItalic", { + { 250 }, + { 389 }, + { 555 }, + { 500 }, + { 500 }, + { 833 }, + { 778 }, + { 333 }, + { 333 }, + { 333 }, + { 500 }, + { 570 }, + { 250 }, + { 333 }, + { 250 }, + { 278 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 500 }, + { 333 }, + { 333 }, + { 570 }, + { 570 }, + { 570 }, + { 500 }, + { 832 }, + { 667 }, + { 667 }, + { 667 }, + { 722 }, + { 667 }, + { 667 }, + { 722 }, + { 778 }, + { 389 }, + { 500 }, + { 667 }, + { 611 }, + { 889 }, + { 722 }, + { 722 }, + { 611 }, + { 722 }, + { 667 }, + { 556 }, + { 611 }, + { 722 }, + { 667 }, + { 889 }, + { 667 }, + { 611 }, + { 611 }, + { 333 }, + { 278 }, + { 333 }, + { 570 }, + { 500 }, + { 333 }, + { 500 }, + { 500 }, + { 444 }, + { 500 }, + { 444 }, + { 333 }, + { 500 }, + { 556 }, + { 278 }, + { 278 }, + { 500 }, + { 278 }, + { 778 }, + { 556 }, + { 500 }, + { 500 }, + { 500 }, + { 389 }, + { 389 }, + { 278 }, + { 556 }, + { 444 }, + { 667 }, + { 500 }, + { 444 }, + { 389 }, + { 348 }, + { 220 }, + { 348 }, + { 570 }, + } }, }; void * -pdf_alloc(char *outopts) +pdf_alloc(const struct mchars *mchars, char *outopts) { struct termp *p; - if (NULL != (p = pspdf_alloc(outopts))) + if (NULL != (p = pspdf_alloc(mchars, outopts))) p->type = TERMTYPE_PDF; return(p); } void * -ps_alloc(char *outopts) +ps_alloc(const struct mchars *mchars, char *outopts) { struct termp *p; - if (NULL != (p = pspdf_alloc(outopts))) + if (NULL != (p = pspdf_alloc(mchars, outopts))) p->type = TERMTYPE_PS; return(p); } static struct termp * -pspdf_alloc(char *outopts) +pspdf_alloc(const struct mchars *mchars, char *outopts) { struct termp *p; unsigned int pagex, pagey; @@ -443,7 +539,11 @@ pspdf_alloc(char *outopts) char *v; p = mandoc_calloc(1, sizeof(struct termp)); + p->symtab = mchars; p->enc = TERMENC_ASCII; + p->fontq = mandoc_reallocarray(NULL, + (p->fontsz = 8), sizeof(enum termfont)); + p->fontq[0] = p->fontl = TERMFONT_NONE; p->ps = mandoc_calloc(1, sizeof(struct termp_ps)); p->advance = ps_advance; @@ -538,12 +638,14 @@ ps_setwidth(struct termp *p, int iop, size_t width) size_t lastwidth; lastwidth = p->ps->width; - if (0 < iop) + if (iop > 0) p->ps->width += width; - else if (0 > iop) + else if (iop == 0) + p->ps->width = width ? width : p->ps->lastwidth; + else if (p->ps->width > width) p->ps->width -= width; else - p->ps->width = width ? width : p->ps->lastwidth; + p->ps->width = 0; p->ps->lastwidth = lastwidth; } @@ -628,12 +730,8 @@ pdf_obj(struct termp *p, size_t obj) if ((obj - 1) >= p->ps->pdfobjsz) { p->ps->pdfobjsz = obj + 128; - p->ps->pdfobjs = realloc(p->ps->pdfobjs, - p->ps->pdfobjsz * sizeof(size_t)); - if (NULL == p->ps->pdfobjs) { - perror(NULL); - exit((int)MANDOCLEVEL_SYSERR); - } + p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs, + p->ps->pdfobjsz, sizeof(size_t)); } p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes; @@ -760,7 +858,6 @@ ps_end(struct termp *p) static void ps_begin(struct termp *p) { - time_t t; int i; /* @@ -801,11 +898,8 @@ ps_begin(struct termp *p) * stuff gets printed to the screen, so make sure we're sane. */ - t = time(NULL); - if (TERMTYPE_PS == p->type) { ps_printf(p, "%%!PS-Adobe-3.0\n"); - ps_printf(p, "%%%%CreationDate: %s", ctime(&t)); ps_printf(p, "%%%%DocumentData: Clean7Bit\n"); ps_printf(p, "%%%%Orientation: Portrait\n"); ps_printf(p, "%%%%Pages: (atend)\n"); @@ -918,11 +1012,8 @@ ps_pletter(struct termp *p, int c) f = (int)p->ps->lastf; - if (c <= 32 || (c - 32 >= MAXCHAR)) { - ps_putchar(p, ' '); - p->ps->pscol += (size_t)fonts[f].gly[0].wx; - return; - } + if (c <= 32 || c - 32 >= MAXCHAR) + c = 32; ps_putchar(p, (char)c); c -= 32; @@ -962,11 +1053,13 @@ ps_fclose(struct termp *p) * Following this, close out any scope that's open. */ - if ('\0' != p->ps->last) { - if (p->ps->lastf != TERMFONT_NONE) { + if (p->ps->last != '\0') { + assert( ! (p->ps->flags & PS_BACKSP)); + if (p->ps->nextf != p->ps->lastf) { ps_pclose(p); - ps_setfont(p, TERMFONT_NONE); + ps_setfont(p, p->ps->nextf); } + p->ps->nextf = TERMFONT_NONE; ps_pletter(p, p->ps->last); p->ps->last = '\0'; } @@ -980,50 +1073,128 @@ ps_fclose(struct termp *p) static void ps_letter(struct termp *p, int arg) { - char cc, c; + size_t savecol, wx; + char c; c = arg >= 128 || arg <= 0 ? '?' : arg; /* - * State machine dictates whether to buffer the last character - * or not. Basically, encoded words are detected by checking if - * we're an "8" and switching on the buffer. Then we put "8" in - * our buffer, and on the next charater, flush both character - * and buffer. Thus, "regular" words are detected by having a - * regular character and a regular buffer character. + * When receiving a backspace, merely flag it. + * We don't know yet whether it is + * a font instruction or an overstrike. */ - if ('\0' == p->ps->last) { - assert(8 != c); - p->ps->last = c; + if (c == '\b') { + assert(p->ps->last != '\0'); + assert( ! (p->ps->flags & PS_BACKSP)); + p->ps->flags |= PS_BACKSP; return; - } else if (8 == p->ps->last) { - assert(8 != c); - p->ps->last = '\0'; - } else if (8 == c) { - assert(8 != p->ps->last); - if ('_' == p->ps->last) { - if (p->ps->lastf != TERMFONT_UNDER) { - ps_pclose(p); - ps_setfont(p, TERMFONT_UNDER); + } + + /* + * Decode font instructions. + */ + + if (p->ps->flags & PS_BACKSP) { + if (p->ps->last == '_') { + switch (p->ps->nextf) { + case TERMFONT_BI: + break; + case TERMFONT_BOLD: + p->ps->nextf = TERMFONT_BI; + break; + default: + p->ps->nextf = TERMFONT_UNDER; } - } else if (p->ps->lastf != TERMFONT_BOLD) { + p->ps->last = c; + p->ps->flags &= ~PS_BACKSP; + return; + } + if (p->ps->last == c) { + switch (p->ps->nextf) { + case TERMFONT_BI: + break; + case TERMFONT_UNDER: + p->ps->nextf = TERMFONT_BI; + break; + default: + p->ps->nextf = TERMFONT_BOLD; + } + p->ps->flags &= ~PS_BACKSP; + return; + } + + /* + * This is not a font instruction, but rather + * the next character. Prepare for overstrike. + */ + + savecol = p->ps->pscol; + } else + savecol = SIZE_MAX; + + /* + * We found the next character, so the font instructions + * for the previous one are complete. + * Use them and print it. + */ + + if (p->ps->last != '\0') { + if (p->ps->nextf != p->ps->lastf) { ps_pclose(p); - ps_setfont(p, TERMFONT_BOLD); + ps_setfont(p, p->ps->nextf); } - p->ps->last = c; - return; - } else { - if (p->ps->lastf != TERMFONT_NONE) { + p->ps->nextf = TERMFONT_NONE; + + /* + * For an overstrike, if a previous character + * was wider, advance to center the new one. + */ + + if (p->ps->pscolnext) { + wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx; + if (p->ps->pscol + wx < p->ps->pscolnext) + p->ps->pscol = (p->ps->pscol + + p->ps->pscolnext - wx) / 2; + } + + ps_pletter(p, p->ps->last); + + /* + * For an overstrike, if a previous character + * was wider, advance to the end of the old one. + */ + + if (p->ps->pscol < p->ps->pscolnext) { ps_pclose(p); - ps_setfont(p, TERMFONT_NONE); + p->ps->pscol = p->ps->pscolnext; } - cc = p->ps->last; - p->ps->last = c; - c = cc; } - ps_pletter(p, c); + /* + * Do not print the current character yet because font + * instructions might follow; only remember it. + * For the first character, nothing else is done. + * The final character will get printed from ps_fclose(). + */ + + p->ps->last = c; + + /* + * For an overstrike, back up to the previous position. + * If the previous character is wider than any it overstrikes, + * remember the current position, because it might also be + * wider than all that will overstrike it. + */ + + if (savecol != SIZE_MAX) { + if (p->ps->pscolnext < p->ps->pscol) + p->ps->pscolnext = p->ps->pscol; + ps_pclose(p); + p->ps->pscol = savecol; + p->ps->flags &= ~PS_BACKSP; + } else + p->ps->pscolnext = 0; } static void @@ -1108,9 +1279,10 @@ ps_width(const struct termp *p, int c) { if (c <= 32 || c - 32 >= MAXCHAR) - return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx); + c = 0; + else + c -= 32; - c -= 32; return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx); } @@ -1123,31 +1295,41 @@ ps_hspan(const struct termp *p, const struct roffsu *s * All of these measurements are derived by converting from the * native measurement to AFM units. */ - switch (su->unit) { + case SCALE_BU: + /* + * Traditionally, the default unit is fixed to the + * output media. So this would refer to the point. In + * mandoc(1), however, we stick to the default terminal + * scaling unit so that output is the same regardless + * the media. + */ + r = PNT2AFM(p, su->scale * 72.0 / 240.0); + break; case SCALE_CM: - r = PNT2AFM(p, su->scale * 28.34); + r = PNT2AFM(p, su->scale * 72.0 / 2.54); break; - case SCALE_IN: - r = PNT2AFM(p, su->scale * 72); - break; - case SCALE_PC: - r = PNT2AFM(p, su->scale * 12); - break; - case SCALE_PT: - r = PNT2AFM(p, su->scale * 100); - break; case SCALE_EM: r = su->scale * fonts[(int)TERMFONT_NONE].gly[109 - 32].wx; break; - case SCALE_MM: - r = PNT2AFM(p, su->scale * 2.834); - break; case SCALE_EN: r = su->scale * fonts[(int)TERMFONT_NONE].gly[110 - 32].wx; break; + case SCALE_IN: + r = PNT2AFM(p, su->scale * 72.0); + break; + case SCALE_MM: + r = su->scale * + fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0; + break; + case SCALE_PC: + r = PNT2AFM(p, su->scale * 12.0); + break; + case SCALE_PT: + r = PNT2AFM(p, su->scale * 1.0); + break; case SCALE_VS: r = su->scale * p->ps->lineheight; break; @@ -1169,7 +1351,5 @@ ps_growbuf(struct termp *p, size_t sz) sz = PS_BUFSLOP; p->ps->psmargsz += sz; - - p->ps->psmarg = mandoc_realloc - (p->ps->psmarg, p->ps->psmargsz); + p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz); }