[0.25.0] * Fixed tabs in indentation (#101). This patch fixes S_advance_offset so that it doesn't gobble a tab character when advancing less than the width of a tab. * Added partially_consumed_tab to parser. This keeps track of when we have gotten partway through a tab when consuming initial indentation. * Simplified add_line (only need parser parameter). * Properly handle partially consumed tab. E.g. in - foo bar we should consume two spaces from the second tab, including two spaces in the code block. * Properly handle tabs with blockquotes and fenced blocks. * Fixed handling of tabs in lists. * Clarified logic in S_advance_offset. * Use an assertion to check for in-range html_block_type. It's a programming error if the type is out of range. * Refactored S_processLines to make the logic easier to understand, and added documentation (Mathie Duponchelle). * Removed unnecessary check for empty string_content. * Factored out contains_inlines. * Moved the cmake minimum version to top line of CMakeLists.txt (tinysun212). * Fix ctype(3) usage on NetBSD (Kamil Rytarowski). We need to cast value passed to isspace(3) to unsigned char to explicitly prevent possibly undefined behavior. * Compile in plain C mode with MSVC 12.0 or newer (Nick 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. * Switched from "inline" to "CMARK_INLINE" (Nick Wellnhofer). Newer MSVC versions support enough of C99 to be able to compile cmark in plain C mode. Only the "inline" keyword is still unsupported. We have to use "__inline" instead. * Added include guards to config.h * config.h.in - added compatibility snprintf, vsnprintf for MSVC. * Replaced sprintf with snprintf (Marco Benelli). * config.h: include stdio.h for _vscprintf etc. * Include starg.h when needed in config.h. * Removed an unnecessary C99-ism in buffer.c. This helps compiling on systems like luarocks that don't have all the cmake configuration goodness (thanks to carlmartus). * Don't use variable length arrays (Nick Wellnhofer). They're not supported by MSVC. * Test with multiple MSVC versions under Appveyor (Nick Wellnhofer). * Fix installation dir of man-pages on NetBSD (Kamil Rytarowski). * Fixed typo in cmark.h comments (Chris Eidhof). * Clarify in man page that cmark_node_free frees a node's children too. * Fixed documentation of --width in man page. * Require re2c >= 1.14.2 (#102). * Generated scanners.c with more recent re2c. [0.24.1] * Commonmark renderer: + Use HTML comment, not two blank lines, to separate a list item from a following code block or list. This makes the output more portable, since the "two blank lines" rule is unique to CommonMark. Also, it allows us to break out of a sublist without breaking out of all levels of nesting. + `is_autolink` - handle case where link has no children, which previously caused a segfault. + Use 4-space indent for bullet lists, for increased portability. + Use 2-space + newline for line break for increased portability (#90). + Improved punctuation escaping. Previously all `)` and `.` characters after digits were escaped; now they are only escaped if they are genuinely in a position where they'd cause a list item. This is achieved by changes in `render.c`: (a) `renderer->begin_content` is only set to false after a string of digits at the beginning of the line, and (b) we never break a line before a digit. Also, `begin_content` is properly initialized to true. * Handle NULL root in `consolidate_text_nodes`. [0.24.0] * [API change] Added `cmark_node_replace(oldnode, newnode)`. * Updated spec.txt to 0.24. * Fixed edge case with escaped parens in link destination (#97). This was also checked against the #82 case with asan. * Removed unnecessary check for `fenced` in `cmark_render_html`. It's sufficient to check that the info string is empty. Indeed, those who use the API may well create a code block with an info string without explicitly setting `fenced`. * Updated format of `test/smart_punct.txt`. * Updated `test/spec.txt`, `test/smart_punct.txt`, and `spec_tests.py` to new format. * Fixed `get_containing_block` logic in `src/commonmark.c`. This did not allow for the possibility that a node might have no containing block, causing the commonmark renderer to segfault if passed an inline node with no block parent. * Fixed string representations of `CUSTOM_BLOCK`, `CUSTOM_INLINE`. The old versions `raw_inline` and `raw_block` were being used, and this led to incorrect xml output. * Use default opts in python sample wrapper. * Allow multiline setext header content, as per spec. * Don't allow spaces in link destinations, even with pointy brackets. Conforms to latest change in spec. * Updated `scheme` scanner according to spec change. We no longer use a whitelist of valid schemes. * Allow any kind of nodes as children of `CUSTOM_BLOCK` (#96). * `cmark.h`: moved typedefs for iterator into iterator section. This just moves some code around so it makes more sense to read, and in the man page. * Fixed `make_man_page.py` so it includes typedefs again. [0.23.0] * [API change] Added `CUSTOM_BLOCK` and `CUSTOM_INLINE` node types. They are never generated by the parser, and do not correspond to CommonMark elements. They are designed to be inserted by filters that postprocess the AST. For example, a filter might convert specially marked code blocks to svg diagrams in HTML and tikz diagrams in LaTeX, passing these through to the renderer as a `CUSTOM_BLOCK`. These nodes can have children, but they also have literal text to be printed by the renderer "on enter" and "on exit." Added `cmark_node_get_on_enter`, `cmark_node_set_on_enter`, `cmark_node_get_on_exit`, `cmark_node_set_on_exit` to API. * [API change] Rename `NODE_HTML` -> `NODE_HTML_BLOCK`, `NODE_INLINE_HTML` -> `NODE_HTML_INLINE`. Define aliases so the old names still work, for backwards compatibility. * [API change] Rename `CMARK_NODE_HEADER` -> `CMARK_NODE_HEADING`. Note that for backwards compatibility, we have defined aliases: `CMARK_NODE_HEADER` = `CMARK_NODE_HEADING`, `cmark_node_get_header_level` = `cmark_node_get_heading_level`, and `cmark_node_set_header_level` = `cmark_node_set_heading_level`. * [API change] Rename `CMARK_NODE_HRULE` -> `CMARK_NODE_THEMATIC_BREAK`. Defined the former as the latter for backwards compatibility. * Don't allow space between link text and link label in a reference link (spec change). * Separate parsing and rendering opts in `cmark.h` (#88). This change also changes some of these constants' numerical values, but nothing should change in the API if you use the constants themselves. It should now be clear in the man page which options affect parsing and which affect rendering. * xml renderer - Added xmlns attribute to document node (jgm/CommonMark#87). * Commonmark renderer: ensure html blocks surrounded by blanks. Otherwise we get failures of roundtrip tests. * Commonmark renderer: ensure that literal characters get escaped when they're at the beginning of a block, e.g. `> \- foo`. * LaTeX renderer - better handling of internal links. Now we render `[foo](#bar)` as `\protect\hyperlink{bar}{foo}`. * Check for NULL pointer in _scan_at (#81). * `Makefile.nmake`: be more robust when cmake is missing. Previously, when cmake was missing, the build dir would be created anyway, and subsequent attempts (even with cmake) would fail, because cmake would not be run. Depending on `build/CMakeFiles` is more robust -- this won't be created unless cmake is run. Partially addresses #85. * Fixed DOCTYPE in xml output. * commonmark.c: fix `size_t` to `int`. This fixes an MSVC warning "conversion from 'size_t' to 'int', possible loss of data" (Kevin Wojniak). * Correct string length in `cmark_parse_document` example (Lee Jeffery). * Fix non-ASCII end-of-line character check (andyuhnak). * Fix "declaration shadows a local variable" (Kevin Wojniak). * Install static library (jgm/CommonMark#381). * Fix warnings about dropping const qualifier (Kevin Wojniak). * Use full (unabbreviated) versions of constants (`CMARK_...`). * Removed outdated targets from Makefile. * Removed need for sudo in `make bench`. * Improved benchmark. Use longer test, since `time` has limited resolution. * Removed `bench.h` and timing calls in `main.c`. * Updated API docs; getters return empty strings if not set rather than NULL, as previously documented. * Added api_tests for custom nodes. * Made roundtrip test part of the test suite run by cmake. * Regenerate `scanners.c` using re2c 0.15.3. * Adjusted scanner for link url. This fixes a heap buffer overflow (#82). * Added version number (1.0) to XML namespace. We don't guarantee stability in this until 1.0 is actually released, however. * Removed obsolete `TIMER` macro. * Make `LIB_INSTALL_DIR` configurable (Mathieu Bridon, #79). * Removed out-of-date luajit wrapper. * Use `input`, not `parser->curline` to determine last line length. * Small optimizations in `_scan_at`. * Replaced hard-coded 4 with `TAB_STOP`. * Have `make format` reformat api tests as well. * Added api tests for man, latex, commonmark, and xml renderers (#51). * render.c: added `begin_content` field. This is like `begin_line` except that it doesn't trigger production of the prefix. So it can be set after an initial prefix (say `> `) is printed by the renderer, and consulted in determining whether to escape content that has a special meaning at the beginning of a line. Used in the commonmark renderer. * Python 3.5 compatibility: don't require HTMLParseError (Zhiming Wang). HTMLParseError was removed in Python 3.5. Since it could never be thrown in Python 3.5+, we simply define a placeholder when HTMLParseError cannot be imported. * Set `convert_charrefs=False` in `normalize.py` (#83). This defeats the new default as of python 3.5, and allows the script to work with python 3.5. [0.22.0] * Removed `pre` from blocktags scanner. `pre` is handled separately in rule 1 and needn't be handled in rule 6. * Added `iframe` to list of blocktags, as per spec change. * Fixed bug with `HRULE` after blank line. This previously caused cmark to break out of a list, thinking it had two consecutive blanks. * Check for empty string before trying to look at line ending. * Make sure every line fed to `S_process_line` ends with `\n` (#72). So `S_process_line` sees only unix style line endings. Ultimately we probably want a better solution, allowing the line ending style of the input file to be preserved. This solution forces output with newlines. * Improved `cmark_strbuf_normalize_whitespace` (#73). Now all characters that satisfy `cmark_isspace` are recognized as whitespace. Previously `\r` and `\t` (and others) weren't included. * Treat line ending with EOF as ending with newline (#71). * Fixed `--hardbreaks` with `\r\n` line breaks (#68). * Disallow list item starting with multiple blank lines (jgm/CommonMark#332). * Allow tabs before closing `#`s in ATX header * Removed `cmark_strbuf_printf` and `cmark_strbuf_vprintf`. These are no longer needed, and cause complications for MSVC. Also removed `HAVE_VA_COPY` and `HAVE_C99_SNPRINTF` feature tests. * Added option to disable tests (Kevin Wojniak). * Added `CMARK_INLINE` macro. * Removed need to disable MSVC warnings 4267, 4244, 4800 (Kevin Wojniak). * Fixed MSVC inline errors when cmark is included in sources that don't have the same set of disabled warnings (Kevin Wojniak). * Fix `FileNotFoundError` errors on tests when cmark is built from another project via `add_subdirectory()` (Kevin Wojniak). * Prefix `utf8proc` functions to avoid conflict with existing library (Kevin Wojniak). * Avoid name clash between Windows `.pdb` files (Nick Wellnhofer). * Improved `smart_punct.txt` (see jgm/commonmark.js#61). * Set `POSITION_INDEPENDENT_CODE` `ON` for static library (see #39). * `make bench`: allow overriding `BENCHFILE`. Previously if you did this, it would clopper `BENCHFILE` with the default bench file. * `make bench`: Use -10 priority with renice. * Improved `make_autolink`. Ensures that title is chunk with empty string rather than NULL, as with other links. * Added `clang-check` target. * Travis: split `roundtrip_test` and `leakcheck` (OGINO Masanori). * Use clang-format, llvm style, for formatting. Reformatted all source files. Added `format` target to Makefile. Removed `astyle` target. Updated `.editorconfig`. [0.21.0] * Updated to version 0.21 of spec. * Added latex renderer (#31). New exported function in API: `cmark_render_latex`. New source file: `src/latex.hs`. * Updates for new HTML block spec. Removed old `html_block_tag` scanner. Added new `html_block_start` and `html_block_start_7`, as well as `html_block_end_n` for n = 1-5. Rewrote block parser for new HTML block spec. * We no longer preprocess tabs to spaces before parsing. Instead, we keep track of both the byte offset and the (virtual) column as we parse block starts. This allows us to handle tabs without converting to spaces first. Tabs are left as tabs in the output, as per the revised spec. * Removed utf8 validation by default. We now replace null characters in the line splitting code. * Added `CMARK_OPT_VALIDATE_UTF8` option and command-line option `--validate-utf8`. This option causes cmark to check for valid UTF-8, replacing invalid sequences with the replacement character, U+FFFD. Previously this was done by default in connection with tab expansion, but we no longer do it by default with the new tab treatment. (Many applications will know that the input is valid UTF-8, so validation will not be necessary.) * Added `CMARK_OPT_SAFE` option and `--safe` command-line flag. + Added `CMARK_OPT_SAFE`. This option disables rendering of raw HTML and potentially dangerous links. + Added `--safe` option in command-line program. + Updated `cmark.3` man page. + Added `scan_dangerous_url` to scanners. + In HTML, suppress rendering of raw HTML and potentially dangerous links if `CMARK_OPT_SAFE`. Dangerous URLs are those that begin with `javascript:`, `vbscript:`, `file:`, or `data:` (except for `image/png`, `image/gif`, `image/jpeg`, or `image/webp` mime types). + Added `api_test` for `OPT_CMARK_SAFE`. + Rewrote `README.md` on security. * Limit ordered list start to 9 digits, per spec. * Added width parameter to `render_man` (API change). * Extracted common renderer code from latex, man, and commonmark renderers into a separate module, `renderer.[ch]` (#63). To write a renderer now, you only need to write a character escaping function and a node rendering function. You pass these to `cmark_render` and it handles all the plumbing (including line wrapping) for you. So far this is an internal module, but we might consider adding it to the API in the future. * commonmark writer: correctly handle email autolinks. * commonmark writer: escape `!`. * Fixed soft breaks in commonmark renderer. * Fixed scanner for link url. re2c returns the longest match, so we were getting bad results with `[link](foo\(and\(bar\)\))` which it would parse as containing a bare `\` followed by an in-parens chunk ending with the final paren. * Allow non-initial hyphens in html tag names. This allows for custom tags, see jgm/CommonMark#239. * Updated `test/smart_punct.txt`. * Implemented new treatment of hyphens with `--smart`, converting sequences of hyphens to sequences of em and en dashes that contain no hyphens. * HTML renderer: properly split info on first space char (see jgm/commonmark.js#54). * Changed version variables to functions (#60, Andrius Bentkus). This is easier to access using ffi, since some languages, like C# like to use only function interfaces for accessing library functionality. * `process_emphasis`: Fixed setting lower bound to potential openers. Renamed `potential_openers` -> `openers_bottom`. Renamed `start_delim` -> `stack_bottom`. * Added case for #59 to `pathological_test.py`. * Fixed emphasis/link parsing bug (#59). * Fixed off-by-one error in line splitting routine. This caused certain NULLs not to be replaced. * Don't rtrim in `subject_from_buffer`. This gives bad results in parsing reference links, where we might have trailing blanks (`finalize` removes the bytes parsed as a reference definition; before this change, some blank bytes might remain on the line). + Added `column` and `first_nonspace_column` fields to `parser`. + Added utility function to advance the offset, computing the virtual column too. Note that we don't need to deal with UTF-8 here at all. Only ASCII occurs in block starts. + Significant performance improvement due to the fact that we're not doing UTF-8 validation. * Fixed entity lookup table. The old one had many errors. The new one is derived from the list in the npm entities package. Since the sequences can now be longer (multi-code-point), we have bumped the length limit from 4 to 8, which also affects `houdini_html_u.c`. An example of the kind of error that was fixed: `≧̸` should be rendered as "≧̸" (U+02267 U+00338), but it was being rendered as "≧" (which is the same as `≧`). * Replace gperf-based entity lookup with binary tree lookup. The primary advantage is a big reduction in the size of the compiled library and executable (> 100K). There should be no measurable performance difference in normal documents. I detected only a slight performance hit in a file containing 1,000,000 entities. + Removed `src/html_unescape.gperf` and `src/html_unescape.h`. + Added `src/entities.h` (generated by `tools/make_entities_h.py`). + Added binary tree lookup functions to `houdini_html_u.c`, and use the data in `src/entities.h`. * Renamed `entities.h` -> `entities.inc`, and `tools/make_entities_h.py` -> `tools/make_entitis_inc.py`. * Fixed cases like ``` [ref]: url "title" ok ``` Here we should parse the first line as a reference. * `inlines.c`: Added utility functions to skip spaces and line endings. * Fixed backslashes in link destinations that are not part of escapes (jgm/commonmark#45). * `process_line`: Removed "add newline if line doesn't have one." This isn't actually needed. * Small logic fixes and a simplification in `process_emphasis`. * Added more pathological tests: + Many link closers with no openers. + Many link openers with no closers. + Many emph openers with no closers. + Many closers with no openers. + `"*a_ " * 20000`. * Fixed `process_emphasis` to handle new pathological cases. Now we have an array of pointers (`potential_openers`), keyed to the delim char. When we've failed to match a potential opener prior to point X in the delimiter stack, we reset `potential_openers` for that opener type to X, and thus avoid having to look again through all the openers we've already rejected. * `process_inlines`: remove closers from delim stack when possible. When they have no matching openers and cannot be openers themselves, we can safely remove them. This helps with a performance case: `"a_ " * 20000` (jgm/commonmark.js#43). * Roll utf8proc_charlen into utf8proc_valid (Nick Wellnhofer). Speeds up "make bench" by another percent. * `spec_tests.py`: allow `→` for tab in HTML examples. * `normalize.py`: don't collapse whitespace in pre contexts. * Use utf-8 aware re2c. * Makefile afl target: removed `-m none`, added `CMARK_OPTS`. * README: added `make afl` instructions. * Limit generated generated `cmark.3` to 72 character line width. * Travis: switched to containerized build system. * Removed `debug.h`. (It uses GNU extensions, and we don't need it anyway.) * Removed sundown from benchmarks, because the reading was anomalous. sundown had an arbitrary 16MB limit on buffers, and the benchmark input exceeded that. So who knows what we were actually testing? Added hoedown, sundown's successor, which is a better comparison. [0.20.0] * Fixed bug in list item parsing when items indented >= 4 spaces (#52). * Don't allow link labels with no non-whitespace characters (jgm/CommonMark#322). * Fixed multiple issues with numeric entities (#33, Nick Wellnhofer). * Support CR and CRLF line endings (Ben Trask). * Added test for different line endings to `api_test`. * Allow NULL value in string setters (Nick Wellnhofer). (NULL produces a 0-length string value.) Internally, URL and title are now stored as `cmark_chunk` rather than `char *`. * Fixed memory leak in `cmark_consolidate_text_nodes` (#32). * Fixed `is_autolink` in the CommonMark renderer (#50). Previously *any* link with an absolute URL was treated as an autolink. * Cope with broken `snprintf` on Windows (Nick Wellnhofer). On Windows, `snprintf` returns -1 if the output was truncated. Fall back to Windows-specific `_scprintf`. * Switched length parameter on `cmark_markdown_to_html`, `cmark_parser_feed`, and `cmark_parse_document` from `int` to `size_t` (#53, Nick Wellnhofer). * Use a custom type `bufsize_t` for all string sizes and indices. This allows to switch to 64-bit string buffers by changing a single typedef and a macro definition (Nick Wellnhofer). * Hardened the `strbuf` code, checking for integer overflows and adding range checks (Nick Wellnhofer). * Removed unused function `cmark_strbuf_attach` (Nick Wellnhofer). * Fixed all implicit 64-bit to 32-bit conversions that `-Wshorten-64-to-32` warns about (Nick Wellnhofer). * Added helper function `cmark_strbuf_safe_strlen` that converts from `size_t` to `bufsize_t` and throws an error in case of an overflow (Nick Wellnhofer). * Abort on `strbuf` out of memory errors (Nick Wellnhofer). Previously such errors were not being trapped. This involves some internal changes to the `buffer` library that do not affect the API. * Factored out `S_find_first_nonspace` in `S_proces_line`. Added fields `offset`, `first_nonspace`, `indent`, and `blank` to `cmark_parser` struct. This just removes some repetition. * Added Racket Racket (5.3+) wrapper (Eli Barzilay). * Removed `-pg` from Debug build flags (#47). * Added Ubsan build target, to check for undefined behavior. * Improved `make leakcheck`. We now return an error status if anything in the loop fails. We now check `--smart` and `--normalize` options. * Removed `wrapper3.py`, made `wrapper.py` work with python 2 and 3. Also improved the wrapper to work with Windows, and to use smart punctuation (as an example). * In `wrapper.rb`, added argument for options. * Revised luajit wrapper. * Added build status badges to README.md. * Added links to go, perl, ruby, R, and Haskell bindings to README.md. [0.19.0] * Fixed `_` emphasis parsing to conform to spec (jgm/CommonMark#317). * Updated `spec.txt`. * Compile static library with `-DCMARK_STATIC_DEFINE` (Nick Wellnhofer). * Suppress warnings about Windows runtime library files (Nick Wellnhofer). Visual Studio Express editions do not include the redistributable files. Set `CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS_NO_WARNINGS` to suppress warnings. * Added appyeyor: Windows continuous integration (`appveyor.yml`). * Use `os.path.join` in `test/cmark.py` for proper cross-platform paths. * Fixed `Makefile.nmake`. * Improved `make afl`: added `test/afl_dictionary`, increased timeout for hangs. * Improved README with a description of the library's strengths. * Pass-through Unicode non-characters (Nick Wellnhofer). Despite their name, Unicode non-characters are valid code points. They should be passed through by a library like libcmark. * Check return status of `utf8proc_iterate` (#27). [0.18.3] * Include patch level in soname (Nick Wellnhofer). Minor version is tied to spec version, so this allows breaking the ABI between spec releases. * Install compiler-provided system runtime libraries (Changjiang Yang). * Use `strbuf_printf` instead of `snprintf`. `snprintf` is not available on some platforms (Visual Studio 2013 and earlier). * Fixed memory access bug: "invalid read of size 1" on input `[link](<>)`. [0.18.2] * Added commonmark renderer: `cmark_render_commonmark`. In addition to options, this takes a `width` parameter. A value of 0 disables wrapping; a positive value wraps the document to the specified width. Note that width is automatically set to 0 if the `CMARK_OPT_HARDBREAKS` option is set. * The `cmark` executable now allows `-t commonmark` for output as CommonMark. A `--width` option has been added to specify wrapping width. * Added `roundtrip_test` Makefile target. This runs all the spec through the commonmark renderer, and then through the commonmark parser, and compares normalized HTML to the test. All tests pass with the current parser and renderer, giving us some confidence that the commonmark renderer is sufficiently robust. Eventually this should be pythonized and put in the cmake test routine. * Removed an unnecessary check in `blocks.c`. By the time we check for a list start, we've already checked for a horizontal rule, so we don't need to repeat that check here. Thanks to Robin Stocker for pointing out a similar redundancy in commonmark.js. * Fixed bug in `cmark_strbuf_unescape` (`buffer.c`). The old function gave incorrect results on input like `\\*`, since the next backslash would be treated as escaping the `*` instead of being escaped itself. * `scanners.re`: added `_scan_scheme`, `scan_scheme`, used in the commonmark renderer. * Check for `CMAKE_C_COMPILER` (not `CC_COMPILER`) when setting C flags. * Update code examples in documentation, adding new parser option argument, and using `CMARK_OPT_DEFAULT` (Nick Wellnhofer). * Added options parameter to `cmark_markdown_to_html`. * Removed obsolete reference to `CMARK_NODE_LINK_LABEL`. * `make leakcheck` now checks all output formats. * `test/cmark.py`: set default options for `markdown_to_html`. * Warn about buggy re2c versions (Nick Wellnhofer). [0.18.1] * Build static version of library in default build (#11). * `cmark.h`: Add missing argument to `cmark_parser_new` (#12). [0.18] * Switch to 2-clause BSD license, with agreement of contributors. * Added Profile build type, `make prof` target. * Fixed autolink scanner to conform to the spec. Backslash escapes not allowed in autolinks. * Don't rely on strnlen being available (Nick Wellnhofer). * Updated scanners for new whitespace definition. * Added `CMARK_OPT_SMART` and `--smart` option, `smart.c`, `smart.h`. * Added test for `--smart` option. * Fixed segfault with --normalize (closes #7). * Moved normalization step from XML renderer to `cmark_parser_finish`. * Added options parameter to `cmark_parse_document`, `cmark_parse_file`. * Fixed man renderer's escaping for unicode characters. * Don't require python3 to make `cmark.3` man page. * Use ASCII escapes for punctuation characters for portability. * Made `options` an int rather than a long, for consistency. * Packed `cmark_node` struct to fit into 128 bytes. This gives a small performance boost and lowers memory usage. * Repacked `delimiter` struct to avoid hole. * Fixed use-after-free bug, which arose when a paragraph containing only reference links and blank space was finalized (#9). Avoid using `parser->current` in the loop that creates new blocks, since `finalize` in `add_child` may have removed the current parser (if it contains only reference definitions). This isn't a great solution; in the long run we need to rewrite to make the logic clearer and to make it harder to make mistakes like this one. * Added 'Asan' build type. `make asan` will link against ASan; the resulting executable will do checks for memory access issues. Thanks @JordanMilne for the suggestion. * Add Makefile target to fuzz with AFL (Nick Wellnhofer) The variable `$AFL_PATH` must point to the directory containing the AFL binaries. It can be set as an environment variable or passed to make on the command line. [0.17] * Stripped out all JavaScript related code and documentation, moving it to a separate repository (). * Improved Makefile targets, so that `cmake` is run again only when necessary (Nick Wellnhofer). * Added `INSTALL_PREFIX` to the Makefile, allowing installation to a location other than `/usr/local` without invoking `cmake` manually (Nick Wellnhofer). * `make test` now guarantees that the project will be rebuilt before tests are run (Nick Wellnhofer). * Prohibited overriding of some Makefile variables (Nick Wellnhofer). * Provide version number and string, both as macros (`CMARK_VERSION`, `CMARK_VERSION_STRING`) and as symbols (`cmark_version`, `cmark_version_string`) (Nick Wellnhofer). All of these come from `cmark_version.h`, which is constructed from a template `cmark_version.h.in` and data in `CMakeLists.txt`. * Avoid calling `free` on null pointer. * Added an accessor for an iterator's root node (`cmark_iter_get_root`). * Added user data field for nodes (Nick Wellnhofer). This is intended mainly for use in bindings for dynamic languages, where it could store a pointer to a target language object (#287). But it can be used for anything. * Man renderer: properly escape multiline strings. * Added assertion to raise error if finalize is called on a closed block. * Implemented the new spec rule for emphasis and strong emphasis with `_`. * Moved the check for fence-close with the other checks for end-of-block. * Fixed a bug with loose list detection with items containings fenced code blocks (#285). * Removed recursive algorithm in `ends_with_blank_line` (#286). * Minor code reformatting: renamed parameters. [0.16] * Added xml renderer (XML representation of the CommonMark AST, which is described in `CommonMark.dtd`). * Reduced size of gperf entity table (Nick Wellnhofer). * Reworked iterators to allow deletion of nodes during iteration (Nick Wellnhofer). * Optimized `S_is_leaf`. * Added `cmark_iter_reset` to iterator API. * Added `cmark_consolidate_text_nodes` to API to combine adjacent text nodes. * Added `CMARK_OPT_NORMALIZE` to options (this combines adjacent text nodes). * Added `--normalize` option to command-line program. * Improved regex for HTML comments in inline parsing. * Python is no longer required for a basic build from the repository.