=================================================================== RCS file: /cvs/mandoc/man_html.c,v retrieving revision 1.1 retrieving revision 1.36 diff -u -p -r1.1 -r1.36 --- mandoc/man_html.c 2009/09/21 14:56:57 1.1 +++ mandoc/man_html.c 2010/05/26 14:03:54 1.36 @@ -1,4 +1,4 @@ -/* $Id: man_html.c,v 1.1 2009/09/21 14:56:57 kristaps Exp $ */ +/* $Id: man_html.c,v 1.36 2010/05/26 14:03:54 kristaps Exp $ */ /* * Copyright (c) 2008, 2009 Kristaps Dzonsons * @@ -14,17 +14,738 @@ * 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" #include "html.h" #include "man.h" +#include "main.h" +/* TODO: preserve ident widths. */ +/* FIXME: have PD set the default vspace width. */ -/* ARGSUSED */ +#define INDENT 5 +#define HALFINDENT 3 + +#define MAN_ARGS const struct man_meta *m, \ + const struct man_node *n, \ + struct html *h + +struct htmlman { + int (*pre)(MAN_ARGS); + int (*post)(MAN_ARGS); +}; + +static void print_man(MAN_ARGS); +static void print_man_head(MAN_ARGS); +static void print_man_nodelist(MAN_ARGS); +static void print_man_node(MAN_ARGS); + +static int a2width(const struct man_node *, + struct roffsu *); + +static int man_alt_pre(MAN_ARGS); +static int man_br_pre(MAN_ARGS); +static int man_ign_pre(MAN_ARGS); +static void man_root_post(MAN_ARGS); +static int man_root_pre(MAN_ARGS); +static int man_B_pre(MAN_ARGS); +static int man_HP_pre(MAN_ARGS); +static int man_I_pre(MAN_ARGS); +static int man_IP_pre(MAN_ARGS); +static int man_PP_pre(MAN_ARGS); +static int man_RS_pre(MAN_ARGS); +static int man_SB_pre(MAN_ARGS); +static int man_SH_pre(MAN_ARGS); +static int man_SM_pre(MAN_ARGS); +static int man_SS_pre(MAN_ARGS); + +static const struct htmlman mans[MAN_MAX] = { + { man_br_pre, NULL }, /* br */ + { NULL, NULL }, /* TH */ + { man_SH_pre, NULL }, /* SH */ + { man_SS_pre, NULL }, /* SS */ + { man_IP_pre, NULL }, /* TP */ + { man_PP_pre, NULL }, /* LP */ + { man_PP_pre, NULL }, /* PP */ + { man_PP_pre, NULL }, /* P */ + { man_IP_pre, NULL }, /* IP */ + { man_HP_pre, NULL }, /* HP */ + { man_SM_pre, NULL }, /* SM */ + { man_SB_pre, NULL }, /* SB */ + { man_alt_pre, NULL }, /* BI */ + { man_alt_pre, NULL }, /* IB */ + { man_alt_pre, NULL }, /* BR */ + { man_alt_pre, NULL }, /* RB */ + { NULL, NULL }, /* R */ + { man_B_pre, NULL }, /* B */ + { man_I_pre, NULL }, /* I */ + { man_alt_pre, NULL }, /* IR */ + { man_alt_pre, NULL }, /* RI */ + { NULL, NULL }, /* na */ + { NULL, NULL }, /* i */ + { man_br_pre, NULL }, /* sp */ + { NULL, NULL }, /* nf */ + { NULL, NULL }, /* fi */ + { NULL, NULL }, /* r */ + { NULL, NULL }, /* RE */ + { man_RS_pre, NULL }, /* RS */ + { man_ign_pre, NULL }, /* DT */ + { man_ign_pre, NULL }, /* UC */ + { man_ign_pre, NULL }, /* PD */ + { man_br_pre, NULL }, /* Sp */ + { man_ign_pre, NULL }, /* Vb */ + { NULL, NULL }, /* Ve */ + { man_ign_pre, NULL }, /* AT */ +}; + + void html_man(void *arg, const struct man *m) { + struct html *h; + struct tag *t; + + h = (struct html *)arg; + + print_gen_decls(h); + + t = print_otag(h, TAG_HTML, 0, NULL); + print_man(man_meta(m), man_node(m), h); + print_tagq(h, t); + + printf("\n"); +} + + +static void +print_man(MAN_ARGS) +{ + struct tag *t; + struct htmlpair tag; + + t = print_otag(h, TAG_HEAD, 0, NULL); + + print_man_head(m, n, h); + print_tagq(h, t); + t = print_otag(h, TAG_BODY, 0, NULL); + + tag.key = ATTR_CLASS; + tag.val = "body"; + print_otag(h, TAG_DIV, 1, &tag); + + print_man_nodelist(m, n, h); + + print_tagq(h, t); +} + + +/* ARGSUSED */ +static void +print_man_head(MAN_ARGS) +{ + + print_gen_head(h); + bufinit(h); + buffmt(h, "%s(%s)", m->title, m->msec); + + print_otag(h, TAG_TITLE, 0, NULL); + print_text(h, h->buf); +} + + +static void +print_man_nodelist(MAN_ARGS) +{ + + print_man_node(m, n, h); + if (n->next) + print_man_nodelist(m, n->next, h); +} + + +static void +print_man_node(MAN_ARGS) +{ + int child; + struct tag *t; + + child = 1; + t = h->tags.head; + + bufinit(h); + + /* + * FIXME: embedded elements within next-line scopes (e.g., `br' + * within an empty `B') will cause formatting to be forgotten + * due to scope closing out. + */ + + switch (n->type) { + case (MAN_ROOT): + child = man_root_pre(m, n, h); + break; + case (MAN_TEXT): + print_text(h, n->string); + return; + default: + /* + * Close out scope of font prior to opening a macro + * scope. Assert that the metafont is on the top of the + * stack (it's never nested). + */ + if (h->metaf) { + assert(h->metaf == t); + print_tagq(h, h->metaf); + assert(NULL == h->metaf); + t = h->tags.head; + } + if (mans[n->tok].pre) + child = (*mans[n->tok].pre)(m, n, h); + break; + } + + if (child && n->child) + print_man_nodelist(m, n->child, h); + + /* This will automatically close out any font scope. */ + print_stagq(h, t); + + bufinit(h); + + switch (n->type) { + case (MAN_ROOT): + man_root_post(m, n, h); + break; + case (MAN_TEXT): + break; + default: + if (mans[n->tok].post) + (*mans[n->tok].post)(m, n, h); + break; + } +} + + +static int +a2width(const struct man_node *n, struct roffsu *su) +{ + + if (MAN_TEXT != n->type) + return(0); + if (a2roffsu(n->string, su, SCALE_BU)) + return(1); + + return(0); +} + + +/* ARGSUSED */ +static int +man_root_pre(MAN_ARGS) +{ + struct htmlpair tag[3]; + struct tag *t, *tt; + char b[BUFSIZ], title[BUFSIZ]; + + b[0] = 0; + if (m->vol) + (void)strlcat(b, m->vol, BUFSIZ); + + snprintf(title, BUFSIZ - 1, "%s(%s)", m->title, m->msec); + + PAIR_CLASS_INIT(&tag[0], "header"); + bufcat_style(h, "width", "100%"); + PAIR_STYLE_INIT(&tag[1], h); + PAIR_SUMMARY_INIT(&tag[2], "header"); + + t = print_otag(h, TAG_TABLE, 3, tag); + tt = print_otag(h, TAG_TR, 0, NULL); + + bufinit(h); + bufcat_style(h, "width", "10%"); + PAIR_STYLE_INIT(&tag[0], h); + print_otag(h, TAG_TD, 1, tag); + print_text(h, title); + print_stagq(h, tt); + + bufinit(h); + bufcat_style(h, "width", "80%"); + bufcat_style(h, "white-space", "nowrap"); + bufcat_style(h, "text-align", "center"); + PAIR_STYLE_INIT(&tag[0], h); + print_otag(h, TAG_TD, 1, tag); + print_text(h, b); + print_stagq(h, tt); + + bufinit(h); + bufcat_style(h, "width", "10%"); + bufcat_style(h, "text-align", "right"); + PAIR_STYLE_INIT(&tag[0], h); + print_otag(h, TAG_TD, 1, tag); + print_text(h, title); + print_tagq(h, t); + return(1); +} + + +/* ARGSUSED */ +static void +man_root_post(MAN_ARGS) +{ + struct htmlpair tag[3]; + struct tag *t, *tt; + char b[DATESIZ]; + + if (m->rawdate) + strlcpy(b, m->rawdate, DATESIZ); + else + time2a(m->date, b, DATESIZ); + + PAIR_CLASS_INIT(&tag[0], "footer"); + bufcat_style(h, "width", "100%"); + PAIR_STYLE_INIT(&tag[1], h); + PAIR_SUMMARY_INIT(&tag[2], "footer"); + + t = print_otag(h, TAG_TABLE, 3, tag); + tt = print_otag(h, TAG_TR, 0, NULL); + + bufinit(h); + bufcat_style(h, "width", "50%"); + PAIR_STYLE_INIT(&tag[0], h); + print_otag(h, TAG_TD, 1, tag); + print_text(h, b); + print_stagq(h, tt); + + bufinit(h); + bufcat_style(h, "width", "50%"); + bufcat_style(h, "text-align", "right"); + PAIR_STYLE_INIT(&tag[0], h); + print_otag(h, TAG_TD, 1, tag); + if (m->source) + print_text(h, m->source); + print_tagq(h, t); +} + + + +/* ARGSUSED */ +static int +man_br_pre(MAN_ARGS) +{ + struct roffsu su; + struct htmlpair tag; + + SCALE_VS_INIT(&su, 1); + + switch (n->tok) { + case (MAN_Sp): + SCALE_VS_INIT(&su, 0.5); + break; + case (MAN_sp): + if (n->child) + a2roffsu(n->child->string, &su, SCALE_VS); + break; + default: + su.scale = 0; + break; + } + + bufcat_su(h, "height", &su); + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + + /* So the div isn't empty: */ + print_text(h, "\\~"); + + return(0); +} + + +/* ARGSUSED */ +static int +man_SH_pre(MAN_ARGS) +{ + struct htmlpair tag[2]; + struct roffsu su; + + if (MAN_BODY == n->type) { + SCALE_HS_INIT(&su, INDENT); + bufcat_su(h, "margin-left", &su); + PAIR_CLASS_INIT(&tag[0], "sec-body"); + PAIR_STYLE_INIT(&tag[1], h); + print_otag(h, TAG_DIV, 2, tag); + return(1); + } else if (MAN_BLOCK == n->type) { + PAIR_CLASS_INIT(&tag[0], "sec-block"); + if (n->prev && MAN_SH == n->prev->tok) + if (NULL == n->prev->body->child) { + print_otag(h, TAG_DIV, 1, tag); + return(1); + } + + SCALE_VS_INIT(&su, 1); + bufcat_su(h, "margin-top", &su); + if (NULL == n->next) + bufcat_su(h, "margin-bottom", &su); + PAIR_STYLE_INIT(&tag[1], h); + print_otag(h, TAG_DIV, 2, tag); + return(1); + } + + PAIR_CLASS_INIT(&tag[0], "sec-head"); + print_otag(h, TAG_DIV, 1, tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_alt_pre(MAN_ARGS) +{ + const struct man_node *nn; + struct tag *t; + int i; + enum htmlfont fp; + + for (i = 0, nn = n->child; nn; nn = nn->next, i++) { + switch (n->tok) { + case (MAN_BI): + fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_BOLD; + break; + case (MAN_IB): + fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_ITALIC; + break; + case (MAN_RI): + fp = i % 2 ? HTMLFONT_ITALIC : HTMLFONT_NONE; + break; + case (MAN_IR): + fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_ITALIC; + break; + case (MAN_BR): + fp = i % 2 ? HTMLFONT_NONE : HTMLFONT_BOLD; + break; + case (MAN_RB): + fp = i % 2 ? HTMLFONT_BOLD : HTMLFONT_NONE; + break; + default: + abort(); + /* NOTREACHED */ + } + + if (i) + h->flags |= HTML_NOSPACE; + + /* + * Open and close the scope with each argument, so that + * internal \f escapes, which are common, are also + * closed out with the scope. + */ + t = print_ofont(h, fp); + print_man_node(m, nn, h); + print_tagq(h, t); + } + + return(0); +} + + +/* ARGSUSED */ +static int +man_SB_pre(MAN_ARGS) +{ + struct htmlpair tag; + + /* FIXME: print_ofont(). */ + PAIR_CLASS_INIT(&tag, "small bold"); + print_otag(h, TAG_SPAN, 1, &tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_SM_pre(MAN_ARGS) +{ + struct htmlpair tag; + + PAIR_CLASS_INIT(&tag, "small"); + print_otag(h, TAG_SPAN, 1, &tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_SS_pre(MAN_ARGS) +{ + struct htmlpair tag[3]; + struct roffsu su; + + SCALE_VS_INIT(&su, 1); + + if (MAN_BODY == n->type) { + PAIR_CLASS_INIT(&tag[0], "ssec-body"); + if (n->parent->next && n->child) { + bufcat_su(h, "margin-bottom", &su); + PAIR_STYLE_INIT(&tag[1], h); + print_otag(h, TAG_DIV, 2, tag); + return(1); + } + + print_otag(h, TAG_DIV, 1, tag); + return(1); + } else if (MAN_BLOCK == n->type) { + PAIR_CLASS_INIT(&tag[0], "ssec-block"); + if (n->prev && MAN_SS == n->prev->tok) + if (n->prev->body->child) { + bufcat_su(h, "margin-top", &su); + PAIR_STYLE_INIT(&tag[1], h); + print_otag(h, TAG_DIV, 2, tag); + return(1); + } + + print_otag(h, TAG_DIV, 1, tag); + return(1); + } + + SCALE_HS_INIT(&su, INDENT - HALFINDENT); + bufcat_su(h, "margin-left", &su); + PAIR_CLASS_INIT(&tag[0], "ssec-head"); + PAIR_STYLE_INIT(&tag[1], h); + print_otag(h, TAG_DIV, 2, tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_PP_pre(MAN_ARGS) +{ + struct htmlpair tag; + struct roffsu su; + int i; + + if (MAN_BLOCK != n->type) + return(1); + + i = 0; + + if (MAN_ROOT == n->parent->type) { + SCALE_HS_INIT(&su, INDENT); + bufcat_su(h, "margin-left", &su); + i = 1; + } + if (n->prev) { + SCALE_VS_INIT(&su, 1); + bufcat_su(h, "margin-top", &su); + i = 1; + } + + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, i, &tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_IP_pre(MAN_ARGS) +{ + struct roffsu su; + struct htmlpair tag; + const struct man_node *nn; + int width; + + /* + * This scattering of 1-BU margins and pads is to make sure that + * when text overruns its box, the subsequent text isn't flush + * up against it. However, the rest of the right-hand box must + * also be adjusted in consideration of this 1-BU space. + */ + + if (MAN_BODY == n->type) { + SCALE_HS_INIT(&su, INDENT); + bufcat_su(h, "margin-left", &su); + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + return(1); + } + + nn = MAN_BLOCK == n->type ? + n->head->child : n->parent->head->child; + + SCALE_HS_INIT(&su, INDENT); + width = 0; + + /* Width is the last token. */ + + if (MAN_IP == n->tok && NULL != nn) + if (NULL != (nn = nn->next)) { + for ( ; nn->next; nn = nn->next) + /* Do nothing. */ ; + width = a2width(nn, &su); + } + + /* Width is the first token. */ + + if (MAN_TP == n->tok && NULL != nn) { + /* Skip past non-text children. */ + while (nn && MAN_TEXT != nn->type) + nn = nn->next; + if (nn) + width = a2width(nn, &su); + } + + if (MAN_BLOCK == n->type) { + bufcat_su(h, "margin-left", &su); + SCALE_VS_INIT(&su, 1); + bufcat_su(h, "margin-top", &su); + bufcat_style(h, "clear", "both"); + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + return(1); + } + + bufcat_su(h, "min-width", &su); + SCALE_INVERT(&su); + bufcat_su(h, "margin-left", &su); + SCALE_HS_INIT(&su, 1); + bufcat_su(h, "margin-right", &su); + bufcat_style(h, "clear", "left"); + + if (n->next && n->next->child) + bufcat_style(h, "float", "left"); + + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + + /* + * Without a length string, we can print all of our children. + */ + + if ( ! width) + return(1); + + /* + * When a length has been specified, we need to carefully print + * our child context: IP gets all children printed but the last + * (the width), while TP gets all children printed but the first + * (the width). + */ + + if (MAN_IP == n->tok) + for (nn = n->child; nn->next; nn = nn->next) + print_man_node(m, nn, h); + if (MAN_TP == n->tok) + for (nn = n->child->next; nn; nn = nn->next) + print_man_node(m, nn, h); + + return(0); +} + + +/* ARGSUSED */ +static int +man_HP_pre(MAN_ARGS) +{ + const struct man_node *nn; + struct htmlpair tag; + struct roffsu su; + + if (MAN_HEAD == n->type) + return(0); + + nn = MAN_BLOCK == n->type ? + n->head->child : n->parent->head->child; + + SCALE_HS_INIT(&su, INDENT); + + if (NULL != nn) + (void)a2width(nn, &su); + + if (MAN_BLOCK == n->type) { + bufcat_su(h, "margin-left", &su); + SCALE_VS_INIT(&su, 1); + bufcat_su(h, "margin-top", &su); + bufcat_style(h, "clear", "both"); + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + return(1); + } + + bufcat_su(h, "margin-left", &su); + SCALE_INVERT(&su); + bufcat_su(h, "text-indent", &su); + + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + return(1); +} + + +/* ARGSUSED */ +static int +man_B_pre(MAN_ARGS) +{ + + print_ofont(h, HTMLFONT_BOLD); + return(1); +} + + +/* ARGSUSED */ +static int +man_I_pre(MAN_ARGS) +{ + + print_ofont(h, HTMLFONT_ITALIC); + return(1); +} + + +/* ARGSUSED */ +static int +man_ign_pre(MAN_ARGS) +{ + + return(0); +} + + +/* ARGSUSED */ +static int +man_RS_pre(MAN_ARGS) +{ + struct htmlpair tag; + struct roffsu su; + + if (MAN_HEAD == n->type) + return(0); + else if (MAN_BODY == n->type) + return(1); + + SCALE_HS_INIT(&su, INDENT); + bufcat_su(h, "margin-left", &su); + + if (n->head->child) { + SCALE_VS_INIT(&su, 1); + a2width(n->head->child, &su); + bufcat_su(h, "margin-top", &su); + } + + PAIR_STYLE_INIT(&tag, h); + print_otag(h, TAG_DIV, 1, &tag); + return(1); }