diff options
Diffstat (limited to 'eqn_html.c')
| -rw-r--r-- | eqn_html.c | 92 |
1 files changed, 75 insertions, 17 deletions
diff --git a/eqn_html.c b/eqn_html.c index b6e7d914b86e..51f144234275 100644 --- a/eqn_html.c +++ b/eqn_html.c @@ -1,4 +1,4 @@ -/* $Id: eqn_html.c,v 1.11 2017/01/17 01:47:51 schwarze Exp $ */ +/* $Id: eqn_html.c,v 1.17 2017/07/14 13:32:35 schwarze Exp $ */ /* * Copyright (c) 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org> @@ -20,6 +20,7 @@ #include <sys/types.h> #include <assert.h> +#include <ctype.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -33,7 +34,10 @@ eqn_box(struct html *p, const struct eqn_box *bp) { struct tag *post, *row, *cell, *t; const struct eqn_box *child, *parent; + const char *cp; size_t i, j, rows; + enum htmltag tag; + enum eqn_fontt font; if (NULL == bp) return; @@ -47,7 +51,8 @@ eqn_box(struct html *p, const struct eqn_box *bp) if (EQN_MATRIX == bp->type) { if (NULL == bp->first) goto out; - if (EQN_LIST != bp->first->type) { + if (bp->first->type != EQN_LIST || + bp->first->expectargs == 1) { eqn_box(p, bp->first); goto out; } @@ -87,28 +92,28 @@ eqn_box(struct html *p, const struct eqn_box *bp) } switch (bp->pos) { - case (EQNPOS_TO): + case EQNPOS_TO: post = print_otag(p, TAG_MOVER, ""); break; - case (EQNPOS_SUP): + case EQNPOS_SUP: post = print_otag(p, TAG_MSUP, ""); break; - case (EQNPOS_FROM): + case EQNPOS_FROM: post = print_otag(p, TAG_MUNDER, ""); break; - case (EQNPOS_SUB): + case EQNPOS_SUB: post = print_otag(p, TAG_MSUB, ""); break; - case (EQNPOS_OVER): + case EQNPOS_OVER: post = print_otag(p, TAG_MFRAC, ""); break; - case (EQNPOS_FROMTO): + case EQNPOS_FROMTO: post = print_otag(p, TAG_MUNDEROVER, ""); break; - case (EQNPOS_SUBSUP): + case EQNPOS_SUBSUP: post = print_otag(p, TAG_MSUBSUP, ""); break; - case (EQNPOS_SQRT): + case EQNPOS_SQRT: post = print_otag(p, TAG_MSQRT, ""); break; default: @@ -127,18 +132,68 @@ eqn_box(struct html *p, const struct eqn_box *bp) if (EQN_PILE == bp->type) { assert(NULL == post); - if (bp->first != NULL && bp->first->type == EQN_LIST) + if (bp->first != NULL && + bp->first->type == EQN_LIST && + bp->first->expectargs > 1) post = print_otag(p, TAG_MTABLE, ""); - } else if (bp->type == EQN_LIST && + } else if (bp->type == EQN_LIST && bp->expectargs > 1 && bp->parent && bp->parent->type == EQN_PILE) { assert(NULL == post); post = print_otag(p, TAG_MTR, ""); print_otag(p, TAG_MTD, ""); } - if (NULL != bp->text) { - assert(NULL == post); - post = print_otag(p, TAG_MI, ""); + if (bp->text != NULL) { + assert(post == NULL); + tag = TAG_MI; + cp = bp->text; + if (isdigit((unsigned char)cp[0]) || + (cp[0] == '.' && isdigit((unsigned char)cp[1]))) { + tag = TAG_MN; + while (*++cp != '\0') { + if (*cp != '.' && + isdigit((unsigned char)*cp) == 0) { + tag = TAG_MI; + break; + } + } + } else if (*cp != '\0' && isalpha((unsigned char)*cp) == 0) { + tag = TAG_MO; + while (*cp != '\0') { + if (cp[0] == '\\' && cp[1] != '\0') { + cp++; + mandoc_escape(&cp, NULL, NULL); + } else if (isalnum((unsigned char)*cp)) { + tag = TAG_MI; + break; + } else + cp++; + } + } + font = bp->font; + if (bp->text[0] != '\0' && + (((tag == TAG_MN || tag == TAG_MO) && + font == EQNFONT_ROMAN) || + (tag == TAG_MI && font == (bp->text[1] == '\0' ? + EQNFONT_ITALIC : EQNFONT_ROMAN)))) + font = EQNFONT_NONE; + switch (font) { + case EQNFONT_NONE: + post = print_otag(p, tag, ""); + break; + case EQNFONT_ROMAN: + post = print_otag(p, tag, "?", "fontstyle", "normal"); + break; + case EQNFONT_BOLD: + case EQNFONT_FAT: + post = print_otag(p, tag, "?", "fontweight", "bold"); + break; + case EQNFONT_ITALIC: + post = print_otag(p, tag, "?", "fontstyle", "italic"); + break; + default: + abort(); + } print_text(p, bp->text); } else if (NULL == post) { if (NULL != bp->left || NULL != bp->right) @@ -172,14 +227,17 @@ out: } void -print_eqn(struct html *p, const struct eqn *ep) +print_eqn(struct html *p, const struct eqn_box *bp) { struct tag *t; + if (bp->first == NULL) + return; + t = print_otag(p, TAG_MATH, "c", "eqn"); p->flags |= HTML_NONOSPACE; - eqn_box(p, ep->root); + eqn_box(p, bp); p->flags &= ~HTML_NONOSPACE; print_tagq(p, t); |