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#8 Skip PDF scan when content-size is 0

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simon 2019-11-21 16:04:29 -05:00
parent d089601dc5
commit 4ab2ba1a02
1 changed files with 52 additions and 49 deletions
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101
src/parsing/pdf.c
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@ -1,3 +1,4 @@
#include <src/ctx.h>
#include "pdf.h" #include "pdf.h"
#include "src/ctx.h" #include "src/ctx.h"
@ -185,79 +186,81 @@ void parse_pdf(void *buf, size_t buf_len, document_t *doc) {
return; return;
} }
fz_stext_options opts = {0}; if (ScanCtx.content_size > 0) {
text_buffer_t text_buf = text_buffer_create(ScanCtx.content_size); fz_stext_options opts = {0};
text_buffer_t text_buf = text_buffer_create(ScanCtx.content_size);
for (int current_page = 0; current_page < page_count; current_page++) {
fz_page *page = NULL;
if (current_page == 0) {
page = cover;
} else {
fz_var(err);
fz_try(ctx)
page = fz_load_page(ctx, fzdoc, current_page);
fz_catch(ctx)
err = ctx->error.errcode;
if (err != 0) {
text_buffer_destroy(&text_buf);
fz_drop_page(ctx, page);
fz_drop_stream(ctx, stream);
fz_drop_document(ctx, fzdoc);
fz_drop_context(ctx);
return;
}
}
fz_stext_page *stext = fz_new_stext_page(ctx, fz_bound_page(ctx, page));
fz_device *dev = fz_new_stext_device(ctx, stext, &opts);
for (int current_page = 0; current_page < page_count; current_page++) {
fz_page *page = NULL;
if (current_page == 0) {
page = cover;
} else {
fz_var(err); fz_var(err);
fz_try(ctx) fz_try(ctx)
page = fz_load_page(ctx, fzdoc, current_page); fz_run_page(ctx, page, dev, fz_identity, NULL);
fz_always(ctx)
{
fz_close_device(ctx, dev);
fz_drop_device(ctx, dev);
}
fz_catch(ctx) fz_catch(ctx)
err = ctx->error.errcode; err = ctx->error.errcode;
if (err != 0) { if (err != 0) {
text_buffer_destroy(&text_buf); text_buffer_destroy(&text_buf);
fz_drop_page(ctx, page); fz_drop_page(ctx, page);
fz_drop_stext_page(ctx, stext);
fz_drop_stream(ctx, stream); fz_drop_stream(ctx, stream);
fz_drop_document(ctx, fzdoc); fz_drop_document(ctx, fzdoc);
fz_drop_context(ctx); fz_drop_context(ctx);
return; return;
} }
}
fz_stext_page *stext = fz_new_stext_page(ctx, fz_bound_page(ctx, page)); fz_stext_block *block = stext->first_block;
fz_device *dev = fz_new_stext_device(ctx, stext, &opts); while (block != NULL) {
int ret = read_stext_block(block, &text_buf);
fz_var(err); if (ret == TEXT_BUF_FULL) {
fz_try(ctx) break;
fz_run_page(ctx, page, dev, fz_identity, NULL); }
fz_always(ctx) block = block->next;
{ }
fz_close_device(ctx, dev);
fz_drop_device(ctx, dev);
}
fz_catch(ctx)
err = ctx->error.errcode;
if (err != 0) {
text_buffer_destroy(&text_buf);
fz_drop_page(ctx, page);
fz_drop_stext_page(ctx, stext); fz_drop_stext_page(ctx, stext);
fz_drop_stream(ctx, stream); fz_drop_page(ctx, page);
fz_drop_document(ctx, fzdoc);
fz_drop_context(ctx);
return;
}
fz_stext_block *block = stext->first_block; if (text_buf.dyn_buffer.cur >= text_buf.dyn_buffer.size) {
while (block != NULL) {
int ret = read_stext_block(block, &text_buf);
if (ret == TEXT_BUF_FULL) {
break; break;
} }
block = block->next;
} }
fz_drop_stext_page(ctx, stext); text_buffer_terminate_string(&text_buf);
fz_drop_page(ctx, page);
if (text_buf.dyn_buffer.cur >= text_buf.dyn_buffer.size) { meta_line_t *meta_content = malloc(sizeof(meta_line_t) + text_buf.dyn_buffer.cur);
break; meta_content->key = MetaContent;
} memcpy(meta_content->strval, text_buf.dyn_buffer.buf, text_buf.dyn_buffer.cur);
APPEND_META(doc, meta_content)
text_buffer_destroy(&text_buf);
} }
text_buffer_terminate_string(&text_buf);
meta_line_t *meta_content = malloc(sizeof(meta_line_t) + text_buf.dyn_buffer.cur);
meta_content->key = MetaContent;
memcpy(meta_content->strval, text_buf.dyn_buffer.buf, text_buf.dyn_buffer.cur);
APPEND_META(doc, meta_content)
fz_drop_stream(ctx, stream); fz_drop_stream(ctx, stream);
fz_drop_document(ctx, fzdoc); fz_drop_document(ctx, fzdoc);
fz_drop_context(ctx); fz_drop_context(ctx);
text_buffer_destroy(&text_buf);
} }