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2016-06-27Export the targets on installationJonathan Müller
This allows using them in other cmake projects.
2016-06-24Reformatted.John MacFarlane
2016-06-24Removed redundant check.John MacFarlane
2016-06-24Changed `process_emphasis` to get better results in corner cases.John MacFarlane
This will need corresponding spec changes. The change is this: when considering matches between an interior delimiter run (one that can open and can close) and another delimiter run, we require that the sum of the lengths of the two delimiter runs mod 3 is not 0. Thus, for example, in *a**b* 1 23 4 delimiter 1 cannot match 2, since the sum of the lengths of the first delimiter run (1) and the second (1,2) == 3. Thus we get `<em>a**b</em>` instead of `<em>a</em><em>b</em>`. This gives better behavior on things like *a**b**c* which previously got parsed as <em>a</em><em>b</em><em>c</em> and now would be parsed as <em>a<strong>b</strong>c</em> With this change we get four spec test failures, but in each case the output seems more "intuitive": ``` Example 386 (lines 6490-6494) Emphasis and strong emphasis *foo**bar**baz* --- expected HTML +++ actual HTML @@ -1 +1 @@ -<p><em>foo</em><em>bar</em><em>baz</em></p> +<p><em>foo<strong>bar</strong>baz</em></p> Example 389 (lines 6518-6522) Emphasis and strong emphasis *foo**bar*** --- expected HTML +++ actual HTML @@ -1 +1 @@ -<p><em>foo</em><em>bar</em>**</p> +<p><em>foo<strong>bar</strong></em></p> Example 401 (lines 6620-6624) Emphasis and strong emphasis **foo*bar*baz** --- expected HTML +++ actual HTML @@ -1 +1 @@ -<p><em><em>foo</em>bar</em>baz**</p> +<p><strong>foo<em>bar</em>baz</strong></p> Example 442 (lines 6944-6948) Emphasis and strong emphasis **foo*bar** --- expected HTML +++ actual HTML @@ -1 +1 @@ -<p><em><em>foo</em>bar</em>*</p> +<p><strong>foo*bar</strong></p> ```
2016-06-23Removed positon from delimiter struct.John MacFarlane
It is no longer needed; only the brackets struct needs it. Thanks to @robinst.
2016-06-23Removed check for same mem allocator in S_can_contain.John MacFarlane
This is too strict, as it prevents the use of dynamically loaded extensions: see https://github.com/jgm/cmark/pull/123#discussion_r67231518. Documented in man page and public header that one should use the same memory allocator for every node in a tree.
2016-06-23Ported robinst's changes to link parsing.John MacFarlane
See https://github.com/jgm/commonmark.js/pull/101 This uses a separate stack for brackets, instead of putting them on the delimiter stack. This avoids the need for looking through the delimiter stack for the next bracket. It also avoids a shortcut reference lookup when the reference text contains brackets. The change dramatically improved performance on the nested links pathological test for commonmark.js. It has a smaller but measurable effect here.
2016-06-23Revert "Better parsing of shortcut references."John MacFarlane
This reverts commit c069cb55bcadfd0f45890d846ff412b3c892eb87.
2016-06-22Better parsing of shortcut references.John MacFarlane
We reuse the parser for reference labels, instead of just assuming that a slice of the link text will be a valid reference label. (It might contain interior brackets, for example.)
2016-06-22cmark_reference_lookup: Return NULL if reference is null string.John MacFarlane
2016-06-06msvc: Fix warnings and errorsVicent Marti
2016-06-06cmark: Remove old includeVicent Marti
2016-06-06mem: Rename the new APIsVicent Marti
2016-06-06mem: Add a `realloc` pointer to the memory handlerVicent Marti
2016-06-06Do not include `stdbool`Vicent Marti
2016-06-06node: Memory dietVicent Marti
Reduce the storage size for the `cmark_code` struct
2016-06-06buffer: rever to using a 32-bit bufsize_tVicent Marti
2016-06-06node: Memory dietVicent Marti
Save node information in flags instead of using one boolean for each property.
2016-06-06cmark: Implement support for custom allocatorsVicent Marti
2016-06-06config: Add SSIZE_T compat for Win32Vicent Marti
2016-06-06cmake: Global handler for OOM situationsVicent Marti
2016-06-06buffer: proper safety checks for unbounded memoryVicent Marti
The previous work for unbounded memory usage and overflows on the buffer API had several shortcomings: 1. The total size of the buffer was limited by arbitrarily small precision on the storage type for buffer indexes (typedef'd as `bufsize_t`). This is not a good design pattern in secure applications, particualarly since it requires the addition of helper functions to cast to/from the native `size` types and the custom type for the buffer, and check for overflows. 2. The library was calling `abort` on overflow and memory allocation failures. This is not a good practice for production libraries, since it turns a potential RCE into a trivial, guaranteed DoS to the whole application that is linked against the library. It defeats the whole point of performing overflow or allocation checks when the checks will crash the library and the enclosing program anyway. 3. The default size limits for buffers were essentially unbounded (capped to the precision of the storage type) and could lead to DoS attacks by simple memory exhaustion (particularly critical in 32-bit platforms). This is not a good practice for a library that handles arbitrary user input. Hence, this patchset provides slight (but in my opinion critical) improvements on this area, copying some of the patterns we've used in the past for high throughput, security sensitive Markdown parsers: 1. The storage type for buffer sizes is now platform native (`ssize_t`). Ideally, this would be a `size_t`, but several parts of the code expect buffer indexes to be possibly negative. Either way, switching to a `size` type is an strict improvement, particularly in 64-bit platforms. All the helpers that assured that values cannot escape the `size` range have been removed, since they are superfluous. 2. The overflow checks have been removed. Instead, the maximum size for a buffer has been set to a safe value for production usage (32mb) that can be proven not to overflow in practice. Users that need to parse particularly large Markdown documents can increase this value. A static, compile-time check has been added to ensure that the maximum buffer size cannot overflow on any growth operations. 3. The library no longer aborts on buffer overflow. The CMark library now follows the convention of other Markdown implementations (such as Hoedown and Sundown) and silently handles buffer overflows and allocation failures by dropping data from the buffer. The result is that pathological Markdown documents that try to exploit the library will instead generate truncated (but valid, and safe) outputs. All tests after these small refactorings have been verified to pass. --- NOTE: Regarding 32 bit overflows, generating test cases that crash the library is trivial (any input document larger than 2gb will crash CMark), but most Python implementations have issues with large strings to begin with, so a test case cannot be added to the pathological tests suite, since it's written in Python.
2016-06-06Fix character type detection in commonmark.cNick Wellnhofer
- Implement cmark_isalpha. - Check for ASCII character before implicit cast to char. - Use internal ctype functions in commonmark.c. Fixes test failures on Windows and undefined behavior.
2016-06-02commonmark renderer: fixed code block as first in list item.John MacFarlane
We don't want a blank line before a code block when it's the first thing in a list item.
2016-06-01renderer: no_linebreaks instead of no_wrap.John MacFarlane
We generally want this option to prohibit any breaking in things like headers (not just wraps, but softbreaks).
2016-06-01Coerce realurllen to int.John MacFarlane
This is an alternate solution for pull request #132, which introduced a new warning on the comparison: latex.c:191:20: warning: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'bufsize_t' (aka 'int') [-Wsign-compare] if (realurllen == link_text->as.literal.len && ~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
2016-06-01Merge pull request #130 from MathieuDuponchelle/fix_unused_variableJohn MacFarlane
inlines: Remove unused variable "link_text"
2016-06-01Merge pull request #132 from BenedictC/masterJohn MacFarlane
Changed type from int to size_t to fix implicit type conversion warning
2016-06-01- Changed type from int to size_t to fix implicit type conversion warningBenedict Cohen
2016-06-01inlines: Remove unused variable "link_text"Mathieu Duponchelle
2016-05-26Add 2016 to copyrightKevin Burke
I thought I had an outdated version of the binary because it printed 2015 for the version string.
2016-05-14Better documentation of memory-freeing responsibilities.John MacFarlane
in cmark.h and its man page. Closes #124.
2016-04-26Clarify that it's the caller's responsibility to free the buffer...John MacFarlane
returned by cmark_render_html etc. Closes #124.
2016-04-09Reformatted.John MacFarlane
2016-04-09Fixed whitespace.John MacFarlane
2016-04-09Use library functions to insert nodes in emphasis/link processing.John MacFarlane
Previously we did this manually, which introduces many places where errors can creep in.
2016-04-09Correctly handle list marker followed only by spaces.John MacFarlane
This change allows us to pass the new test introduced in 75f231503d2b5854f1ff517402d2751811295bf7. Previously when a list marker was followed only by spaces, cmark expected the following content to be indented by the same number of spaces. But in this case we should treat the line just like a blank line and set list padding accordingly.
2016-04-09Fixed a number of issues relating to line wrapping.John MacFarlane
- Extend CMARK_OPT_NOBREAKS to all renderers and add `--nobreaks`. - Do not autowrap, regardless of width parameter, if CMARK_OPT_NOBREAKS is set. - Fixed CMARK_OPT_HARDBREAKS for LaTeX and man renderers. - Ensure that no auto-wrapping occurs if CMARK_OPT_NOBREAKS is enabled, or if output is CommonMark and CMARK_OPT_HARDBREAKS is enabled. - Updated man pages.
2016-04-09Merge pull request #111 from PavloKapyshin/masterJohn MacFarlane
Add library option to render softbreaks as spaces
2016-03-27Merge pull request #118 from nwellnhof/win-eol-fix2John MacFarlane
Set stdin to binary mode on Windows
2016-03-27Note that NOBREAKS option is HTML-onlyPavlo Kapyshin
2016-03-27Set stdin to binary mode on WindowsNick Wellnhofer
Fixes EOLs when reading from stdin. Fully fixes issue #113.
2016-03-26Handle buffer split across a CRLF line ending (closes #117).John MacFarlane
Adds an internal field to the parser struct to keep track of last_buffer_ended_with_cr.
2016-03-26Merge pull request #115 from nwellnhof/tab-fixJohn MacFarlane
Reset partially_consumed_tab on every new line
2016-03-26Open files in binary modeNick Wellnhofer
Now that cmark supports different line endings, files must be openend in binary mode on Windows. Fixes issue #113.
2016-03-26Reset partially_consumed_tab on every new lineNick Wellnhofer
Fixes issue #114.
2016-03-23Doc: clarify that cmark_node_free frees a node's children too.John MacFarlane
2016-03-18Add library option to render softbreaks as spacesPavlo Kapyshin
2016-03-12Compile in plain C mode with MSVC 12.0 or newerNick Wellnhofer
Under MSVC, we used to compile in C++ mode to get some C99 features like mixing declarations and code. With newer MSVC versions, it's possible to build in plain C mode.
2016-03-12Don't use variable length arraysNick Wellnhofer
They're not supported by MSVC.
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