1#ifndef XDIFF_INTERFACE_H 2#define XDIFF_INTERFACE_H 3 4#include"cache.h" 5#include"xdiff/xdiff.h" 6 7/* 8 * xdiff isn't equipped to handle content over a gigabyte; 9 * we make the cutoff 1GB - 1MB to give some breathing 10 * room for constant-sized additions (e.g., merge markers) 11 */ 12#define MAX_XDIFF_SIZE (1024UL * 1024 * 1023) 13 14typedefvoid(*xdiff_emit_line_fn)(void*,char*,unsigned long); 15typedefvoid(*xdiff_emit_hunk_fn)(void*data, 16long old_begin,long old_nr, 17long new_begin,long new_nr, 18const char*func,long funclen); 19 20intxdi_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const*xpp, xdemitconf_t const*xecfg, xdemitcb_t *ecb); 21intxdi_diff_outf(mmfile_t *mf1, mmfile_t *mf2, 22 xdiff_emit_hunk_fn hunk_fn, 23 xdiff_emit_line_fn line_fn, 24void*consume_callback_data, 25 xpparam_t const*xpp, xdemitconf_t const*xecfg); 26intread_mmfile(mmfile_t *ptr,const char*filename); 27voidread_mmblob(mmfile_t *ptr,const struct object_id *oid); 28intbuffer_is_binary(const char*ptr,unsigned long size); 29 30voidxdiff_set_find_func(xdemitconf_t *xecfg,const char*line,int cflags); 31voidxdiff_clear_find_func(xdemitconf_t *xecfg); 32intgit_xmerge_config(const char*var,const char*value,void*cb); 33externint git_xmerge_style; 34 35/* 36 * Can be used as a no-op hunk_fn for xdi_diff_outf(), since a NULL 37 * one just sends the hunk line to the line_fn callback). 38 */ 39voiddiscard_hunk_line(void*priv, 40long ob,long on,long nb,long nn, 41const char*func,long funclen); 42 43/* 44 * Compare the strings l1 with l2 which are of size s1 and s2 respectively. 45 * Returns 1 if the strings are deemed equal, 0 otherwise. 46 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces 47 * are treated for the comparision. 48 */ 49intxdiff_compare_lines(const char*l1,long s1, 50const char*l2,long s2,long flags); 51 52/* 53 * Returns a hash of the string s of length len. 54 * The `flags` given as XDF_WHITESPACE_FLAGS determine how white spaces 55 * are treated for the hash. 56 */ 57unsigned longxdiff_hash_string(const char*s,size_t len,long flags); 58 59#endif