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html2ms: handle subscripts and superscripts

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This commit is contained in:
cinap_lenrek 2015-09-03 21:24:00 +02:00
parent 72a5fbd8ea
commit b9eb7258bd
1 changed files with 68 additions and 0 deletions
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68
sys/src/cmd/html2ms.c
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@ -217,6 +217,71 @@ onb(Text *text, Tag *tag)
fontstyle(text, "B");
}
void onsmall(Text *text, Tag *tag);
void onsup(Text *text, Tag *tag);
void
onsub(Text *text, Tag *tag)
{
emit(text, "\\v\'0.5\'");
if(cistrcmp(tag->tag, "sub") == 0){
emit(text, "\\x\'0.5\'");
onsmall(text, tag);
} else
restorefontsize(text, tag);
tag->close = onsup;
}
void
onsup(Text *text, Tag *tag)
{
emit(text, "\\v\'-0.5\'");
if(cistrcmp(tag->tag, "sup") == 0){
emit(text, "\\x\'-0.5\'");
onsmall(text, tag);
}else
restorefontsize(text, tag);
tag->close = onsub;
}
/*
* this is poor mans CSS handler.
*/
void
onspan(Text *text, Tag *tag)
{
Attr *a;
if(!tag->opening)
return;
for(a=tag->attr; a < tag->attr+tag->nattr; a++){
if(cistrcmp(a->attr, "class") != 0)
continue;
if(cistrcmp(a->val, "bold") == 0){
onb(text, tag);
return;
}
if(cistrcmp(a->val, "italic") == 0){
oni(text, tag);
return;
}
if(cistrcmp(a->val, "subscript") == 0){
strcpy(tag->tag, "sub");
onsub(text, tag);
strcpy(tag->tag, "span");
return;
}
if(cistrcmp(a->val, "superscript") == 0){
strcpy(tag->tag, "sup");
onsup(text, tag);
strcpy(tag->tag, "span");
return;
}
}
}
void
ontt(Text *text, Tag *tag)
{
@ -510,6 +575,9 @@ struct {
"td", oncell,
"th", oncell,
"tr", oncell,
"sub", onsub,
"sup", onsup,
"span", onspan,
"tt", ontt,
"var", oni,
};