#pragma once #include "strstream.h" typedef struct { outstream_t stream; str_t *output; } html_context_t; strview_t html__strv_copy(strview_t src) { return src; } #define html__str_or_strv(str) _Generic(str, \ strview_t: html__strv_copy, \ str_t: strvInitStr, \ const char *: strvInit, \ char *: strvInit \ )(str) #define htmlPrintf(...) ostrPrintf(&__ctx.stream, __VA_ARGS__) #define htmlPuts(str) ostrPuts(&__ctx.stream, html__str_or_strv(str)) #define htmlBeg(arena_ptr, str_ptr) { \ html_context_t __ctx = { .stream = ostrInit(arena_ptr), .output = str_ptr }; \ htmlPrintf("\n"); #define htmlEnd() htmlPrintf(""); *__ctx.output = ostrAsStr(&__ctx.stream); } #define html__args() \ X(class) \ X(id) \ X(style) \ X(onclick) \ X(href) \ X(src) \ typedef struct { #define X(name) const char *name; html__args() #undef X } html_tag_t; static void html__tag(html_context_t *ctx, const char *tag, html_tag_t *args) { ostrPrintf(&ctx->stream, "<%s", tag); #define X(name, ...) if (args->name) { ostrPrintf(&ctx->stream, " " #name "=\"%s\"", args->name); } html__args() #undef X ostrPutc(&ctx->stream, '>'); } #define tagBeg(tag, ...) do { html_tag_t args = {0, __VA_ARGS__}; html__tag(&__ctx, tag, &args); } while (0) #define tagEnd(tag) htmlPrintf("") #define html__strv_or_str(s) _Generic(s, str_t: NULL) #define html__simple_tag(tag, text, ...) do { tagBeg(tag, __VA_ARGS__); htmlPuts(text); tagEnd(tag); } while (0) #define headBeg(...) tagBeg("head", __VA_ARGS__) #define headEnd() tagEnd("head") #define bodyBeg(...) tagBeg("body", __VA_ARGS__) #define bodyEnd() tagEnd("body") #define divBeg(...) tagBeg("div", __VA_ARGS__) #define divEnd() tagEnd("div") #define htmlRaw(data) ostrPuts(&__ctx.stream, strv(#data)) #define title(text, ...) html__simple_tag("title", text, __VA_ARGS__) #define h1(text, ...) html__simple_tag("h1", text, __VA_ARGS__) #define p(text, ...) html__simple_tag("p", text, __VA_ARGS__) #define span(text, ...) html__simple_tag("span", text, __VA_ARGS__) #define a(text, ...) html__simple_tag("a", text, __VA_ARGS__) #define img(...) tagBeg("img", __VA_ARGS__) #define style(text, ...) html__simple_tag("style", text, __VA_ARGS__) #define hr() htmlPuts("
")