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Support for sourcepos for latex output #29

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Support for sourcepos for latex output #29

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2f032ad
Test support for sourcepos for latex output
jeroen Dec 13, 2023
78d97f6
Add even more sourcepos
jeroen Dec 14, 2023
b0ef509
Skip empty nodes
jeroen Dec 15, 2023
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4 changes: 2 additions & 2 deletions R/markdown.R
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Original file line number Diff line number Diff line change
Expand Up @@ -74,8 +74,8 @@ markdown_text <- function(text, hardbreaks = FALSE, smart = FALSE, normalize = F

#' @export
#' @rdname commonmark
markdown_latex <- function(text, hardbreaks = FALSE, smart = FALSE, normalize = FALSE, footnotes = FALSE, width = 0, extensions = FALSE){
markdown_latex <- function(text, hardbreaks = FALSE, smart = FALSE, normalize = FALSE, sourcepos = FALSE, footnotes = FALSE, width = 0, extensions = FALSE){
text <- enc2utf8(paste(text, collapse="\n"))
extensions <- get_extensions(extensions)
.Call(R_render_markdown, text, 6L, FALSE, hardbreaks, smart, normalize, footnotes, as.integer(width), extensions)
.Call(R_render_markdown, text, 6L, sourcepos, hardbreaks, smart, normalize, footnotes, as.integer(width), extensions)
}
1 change: 1 addition & 0 deletions man/commonmark.Rd
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16 changes: 14 additions & 2 deletions src/cmark/latex.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,22 @@

#define OUT(s, wrap, escaping) renderer->out(renderer, node, s, wrap, escaping)
#define LIT(s) renderer->out(renderer, node, s, false, LITERAL)
#define CR() renderer->cr(renderer)
#define BLANKLINE() renderer->blankline(renderer)
#define CR() latex_out_sourcepos(node, renderer, options, false); renderer->cr(renderer)
#define BLANKLINE() latex_out_sourcepos(node, renderer, options, true); renderer->blankline(renderer)
#define LIST_NUMBER_STRING_SIZE 20

static CMARK_INLINE void latex_out_sourcepos(cmark_node *node, cmark_renderer *renderer, int options, int blankline){
char buffer[100];
if (CMARK_OPT_SOURCEPOS & options && !renderer->need_cr && (node->type != CMARK_NODE_CODE_BLOCK || blankline)) {
if(cmark_node_get_start_line(node) == 0)
return; //elements without node such as softbreaks
snprintf(buffer, 100, " %%sourcepos(%d:%d-%d:%d)",
cmark_node_get_start_line(node), cmark_node_get_start_column(node),
cmark_node_get_end_line(node), cmark_node_get_end_column(node));
renderer->out(renderer, node, buffer, false, LITERAL);
}
}

static CMARK_INLINE void outc(cmark_renderer *renderer, cmark_node *node,
cmark_escaping escape,
int32_t c, unsigned char nextc) {
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