Subversion 1.6.16
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Delta-parsing. More...
#include <apr.h>
#include <apr_pools.h>
#include <apr_hash.h>
#include <apr_tables.h>
#include <apr_file_io.h>
#include "svn_types.h"
#include "svn_string.h"
#include "svn_io.h"
#include "svn_version.h"
#include "svn_checksum.h"
Go to the source code of this file.
Data Structures | |
struct | svn_txdelta_op_t |
A single text delta instruction. More... | |
struct | svn_txdelta_window_t |
An svn_txdelta_window_t object describes how to reconstruct a contiguous section of the target string (the "target view") using a specified contiguous region of the source string (the "source
view"). More... | |
struct | svn_delta_editor_t |
A structure full of callback functions the delta source will invoke as it produces the delta. More... | |
Typedefs | |
typedef struct svn_txdelta_op_t | svn_txdelta_op_t |
A single text delta instruction. | |
typedef struct svn_txdelta_window_t | svn_txdelta_window_t |
An svn_txdelta_window_t object describes how to reconstruct a contiguous section of the target string (the "target view") using a specified contiguous region of the source string (the "source
view"). | |
typedef svn_error_t *(* | svn_txdelta_window_handler_t )(svn_txdelta_window_t *window, void *baton) |
A typedef for functions that consume a series of delta windows, for use in caller-pushes interfaces. | |
typedef struct svn_txdelta_stream_t | svn_txdelta_stream_t |
A delta stream --- this is the hat from which we pull a series of svn_txdelta_window_t objects, which, taken in order, describe the entire target string. | |
typedef svn_error_t *(* | svn_txdelta_next_window_fn_t )(svn_txdelta_window_t **window, void *baton, apr_pool_t *pool) |
A typedef for a function that will set *window to the next window from a svn_txdelta_stream_t object. | |
typedef const unsigned char *(* | svn_txdelta_md5_digest_fn_t )(void *baton) |
A typedef for a function that will return the md5 checksum of the fulltext deltified by a svn_txdelta_stream_t object. | |
typedef struct svn_delta_editor_t | svn_delta_editor_t |
A structure full of callback functions the delta source will invoke as it produces the delta. | |
typedef svn_error_t *(* | svn_delta_path_driver_cb_func_t )(void **dir_baton, void *parent_baton, void *callback_baton, const char *path, apr_pool_t *pool) |
Callback function type for svn_delta_path_driver(). | |
typedef svn_error_t *(* | svn_file_rev_handler_t )(void *baton, const char *path, svn_revnum_t rev, apr_hash_t *rev_props, svn_boolean_t result_of_merge, svn_txdelta_window_handler_t *delta_handler, void **delta_baton, apr_array_header_t *prop_diffs, apr_pool_t *pool) |
The callback invoked by file rev loopers, such as svn_ra_plugin_t.get_file_revs2() and svn_repos_get_file_revs2(). | |
typedef svn_error_t *(* | svn_file_rev_handler_old_t )(void *baton, const char *path, svn_revnum_t rev, apr_hash_t *rev_props, svn_txdelta_window_handler_t *delta_handler, void **delta_baton, apr_array_header_t *prop_diffs, apr_pool_t *pool) |
The old file rev handler interface. | |
Enumerations | |
enum | svn_delta_action { svn_txdelta_source, svn_txdelta_target, svn_txdelta_new } |
Action codes for text delta instructions. More... | |
Functions | |
const svn_version_t * | svn_delta_version (void) |
Get libsvn_delta version information. | |
svn_txdelta_window_t * | svn_txdelta_window_dup (const svn_txdelta_window_t *window, apr_pool_t *pool) |
Return a deep copy of window, allocated in pool. | |
svn_txdelta_window_t * | svn_txdelta_compose_windows (const svn_txdelta_window_t *window_A, const svn_txdelta_window_t *window_B, apr_pool_t *pool) |
Compose two delta windows, yielding a third, allocated in pool. | |
void | svn_txdelta_apply_instructions (svn_txdelta_window_t *window, const char *sbuf, char *tbuf, apr_size_t *tlen) |
Apply the instructions from window to a source view sbuf to produce a target view tbuf. | |
svn_error_t * | svn_txdelta_run (svn_stream_t *source, svn_stream_t *target, svn_txdelta_window_handler_t handler, void *handler_baton, svn_checksum_kind_t checksum_kind, svn_checksum_t **checksum, svn_cancel_func_t cancel_func, void *cancel_baton, apr_pool_t *result_pool, apr_pool_t *scratch_pool) |
This function will generate delta windows that turn source into target, and pushing these windows into the handler window handler callback (passing handler_baton to each invocation). | |
svn_txdelta_stream_t * | svn_txdelta_stream_create (void *baton, svn_txdelta_next_window_fn_t next_window, svn_txdelta_md5_digest_fn_t md5_digest, apr_pool_t *pool) |
Create and return a generic text delta stream with baton, next_window and md5_digest. | |
svn_error_t * | svn_txdelta_next_window (svn_txdelta_window_t **window, svn_txdelta_stream_t *stream, apr_pool_t *pool) |
Set *window to a pointer to the next window from the delta stream stream. | |
const unsigned char * | svn_txdelta_md5_digest (svn_txdelta_stream_t *stream) |
Return the md5 digest for the complete fulltext deltified by stream, or NULL if stream has not yet returned its final NULL window. | |
void | svn_txdelta (svn_txdelta_stream_t **stream, svn_stream_t *source, svn_stream_t *target, apr_pool_t *pool) |
Set *stream to a pointer to a delta stream that will turn the byte string from source into the byte stream from target. | |
svn_stream_t * | svn_txdelta_target_push (svn_txdelta_window_handler_t handler, void *handler_baton, svn_stream_t *source, apr_pool_t *pool) |
Return a writable stream which, when fed target data, will send delta windows to handler/handler_baton which transform the data in source to the target data. | |
svn_error_t * | svn_txdelta_send_string (const svn_string_t *string, svn_txdelta_window_handler_t handler, void *handler_baton, apr_pool_t *pool) |
Send the contents of string to window-handler handler/baton. | |
svn_error_t * | svn_txdelta_send_stream (svn_stream_t *stream, svn_txdelta_window_handler_t handler, void *handler_baton, unsigned char *digest, apr_pool_t *pool) |
Send the contents of stream to window-handler handler/baton. | |
svn_error_t * | svn_txdelta_send_txstream (svn_txdelta_stream_t *txstream, svn_txdelta_window_handler_t handler, void *handler_baton, apr_pool_t *pool) |
Send the contents of txstream to window-handler handler/baton. | |
void | svn_txdelta_apply (svn_stream_t *source, svn_stream_t *target, unsigned char *result_digest, const char *error_info, apr_pool_t *pool, svn_txdelta_window_handler_t *handler, void **handler_baton) |
Prepare to apply a text delta. | |
void | svn_txdelta_to_svndiff2 (svn_txdelta_window_handler_t *handler, void **handler_baton, svn_stream_t *output, int svndiff_version, apr_pool_t *pool) |
Prepare to produce an svndiff-format diff from text delta windows. | |
void | svn_txdelta_to_svndiff (svn_stream_t *output, apr_pool_t *pool, svn_txdelta_window_handler_t *handler, void **handler_baton) |
Similar to svn_txdelta_to_svndiff2, but always using svndiff version 0. | |
svn_stream_t * | svn_txdelta_parse_svndiff (svn_txdelta_window_handler_t handler, void *handler_baton, svn_boolean_t error_on_early_close, apr_pool_t *pool) |
Return a writable generic stream which will parse svndiff-format data into a text delta, invoking handler with handler_baton whenever a new window is ready. | |
svn_error_t * | svn_txdelta_read_svndiff_window (svn_txdelta_window_t **window, svn_stream_t *stream, int svndiff_version, apr_pool_t *pool) |
Read and parse one delta window in svndiff format from the readable stream stream and place it in *window, allocating the result in pool. | |
svn_error_t * | svn_txdelta_skip_svndiff_window (apr_file_t *file, int svndiff_version, apr_pool_t *pool) |
Read and skip one delta window in svndiff format from the file file. | |
svn_delta_editor_t * | svn_delta_default_editor (apr_pool_t *pool) |
Return a default delta editor template, allocated in pool. | |
svn_error_t * | svn_delta_noop_window_handler (svn_txdelta_window_t *window, void *baton) |
A text-delta window handler which does nothing. | |
svn_error_t * | svn_delta_get_cancellation_editor (svn_cancel_func_t cancel_func, void *cancel_baton, const svn_delta_editor_t *wrapped_editor, void *wrapped_baton, const svn_delta_editor_t **editor, void **edit_baton, apr_pool_t *pool) |
Set *editor and *edit_baton to a cancellation editor that wraps wrapped_editor and wrapped_baton. | |
svn_error_t * | svn_delta_depth_filter_editor (const svn_delta_editor_t **editor, void **edit_baton, const svn_delta_editor_t *wrapped_editor, void *wrapped_edit_baton, svn_depth_t requested_depth, svn_boolean_t has_target, apr_pool_t *pool) |
Set *editor and *edit_baton to an depth-based filtering editor that wraps wrapped_editor and wrapped_baton. | |
svn_error_t * | svn_delta_path_driver (const svn_delta_editor_t *editor, void *edit_baton, svn_revnum_t revision, apr_array_header_t *paths, svn_delta_path_driver_cb_func_t callback_func, void *callback_baton, apr_pool_t *pool) |
Drive editor (with its edit_baton) in such a way that each path in paths is traversed in a depth-first fashion. | |
void | svn_compat_wrap_file_rev_handler (svn_file_rev_handler_t *handler2, void **handler2_baton, svn_file_rev_handler_old_t handler, void *handler_baton, apr_pool_t *pool) |
Return, in *handler2 and *handler2_baton a function/baton that will call handler/handler_baton, allocating the *handler2_baton in pool. |
Delta-parsing.
Definition in file svn_delta.h.
const svn_version_t* svn_delta_version | ( | void | ) |
Get libsvn_delta version information.