diff options
Diffstat (limited to 'xdiff/xdiffi.c')
| -rw-r--r-- | xdiff/xdiffi.c | 64 |
1 files changed, 54 insertions, 10 deletions
diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c index 9aeebc473b..2358a2d632 100644 --- a/xdiff/xdiffi.c +++ b/xdiff/xdiffi.c @@ -26,7 +26,7 @@ #define XDL_MAX_COST_MIN 256 #define XDL_HEUR_MIN_COST 256 -#define XDL_LINE_MAX (long)((1UL << (8 * sizeof(long) - 1)) - 1) +#define XDL_LINE_MAX (long)((1UL << (CHAR_BIT * sizeof(long) - 1)) - 1) #define XDL_SNAKE_CNT 20 #define XDL_K_HEUR 4 @@ -257,8 +257,6 @@ static long xdl_split(unsigned long const *ha1, long off1, long lim1, return ec; } } - - return -1; } @@ -295,15 +293,14 @@ int xdl_recs_cmp(diffdata_t *dd1, long off1, long lim1, for (; off1 < lim1; off1++) rchg1[rindex1[off1]] = 1; } else { - long ec; xdpsplit_t spl; spl.i1 = spl.i2 = 0; /* * Divide ... */ - if ((ec = xdl_split(ha1, off1, lim1, ha2, off2, lim2, kvdf, kvdb, - need_min, &spl, xenv)) < 0) { + if (xdl_split(ha1, off1, lim1, ha2, off2, lim2, kvdf, kvdb, + need_min, &spl, xenv) < 0) { return -1; } @@ -331,6 +328,12 @@ int xdl_do_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdalgoenv_t xenv; diffdata_t dd1, dd2; + if (XDF_DIFF_ALG(xpp->flags) == XDF_PATIENCE_DIFF) + return xdl_do_patience_diff(mf1, mf2, xpp, xe); + + if (XDF_DIFF_ALG(xpp->flags) == XDF_HISTOGRAM_DIFF) + return xdl_do_histogram_diff(mf1, mf2, xpp, xe); + if (xdl_prepare_env(mf1, mf2, xpp, xe) < 0) { return -1; @@ -391,6 +394,7 @@ static xdchange_t *xdl_add_change(xdchange_t *xscr, long i1, long i2, long chg1, xch->i2 = i2; xch->chg1 = chg1; xch->chg2 = chg2; + xch->ignore = 0; return xch; } @@ -456,7 +460,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { /* * Record the end-of-group position in case we are matched * with a group of changes in the other file (that is, the - * change record before the enf-of-group index in the other + * change record before the end-of-group index in the other * file is set). */ ixref = rchgo[ixo - 1] ? ix: nrec; @@ -487,7 +491,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) { /* * Try to move back the possibly merged group of changes, to match - * the recorded postion in the other file. + * the recorded position in the other file. */ while (ixref < ix) { rchg[--ixs] = 1; @@ -535,11 +539,49 @@ void xdl_free_script(xdchange_t *xscr) { } } +static int xdl_call_hunk_func(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb, + xdemitconf_t const *xecfg) +{ + xdchange_t *xch, *xche; + + for (xch = xscr; xch; xch = xche->next) { + xche = xdl_get_hunk(&xch, xecfg); + if (!xch) + break; + if (xecfg->hunk_func(xch->i1, xche->i1 + xche->chg1 - xch->i1, + xch->i2, xche->i2 + xche->chg2 - xch->i2, + ecb->priv) < 0) + return -1; + } + return 0; +} + +static void xdl_mark_ignorable(xdchange_t *xscr, xdfenv_t *xe, long flags) +{ + xdchange_t *xch; + + for (xch = xscr; xch; xch = xch->next) { + int ignore = 1; + xrecord_t **rec; + long i; + + rec = &xe->xdf1.recs[xch->i1]; + for (i = 0; i < xch->chg1 && ignore; i++) + ignore = xdl_blankline(rec[i]->ptr, rec[i]->size, flags); + + rec = &xe->xdf2.recs[xch->i2]; + for (i = 0; i < xch->chg2 && ignore; i++) + ignore = xdl_blankline(rec[i]->ptr, rec[i]->size, flags); + + xch->ignore = ignore; + } +} int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, xdemitconf_t const *xecfg, xdemitcb_t *ecb) { xdchange_t *xscr; xdfenv_t xe; + emit_func_t ef = xecfg->hunk_func ? xdl_call_hunk_func : xdl_emit_diff; if (xdl_do_diff(mf1, mf2, xpp, &xe) < 0) { @@ -553,7 +595,10 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, return -1; } if (xscr) { - if (xdl_emit_diff(&xe, xscr, ecb, xecfg) < 0) { + if (xpp->flags & XDF_IGNORE_BLANK_LINES) + xdl_mark_ignorable(xscr, &xe, xpp->flags); + + if (ef(&xe, xscr, ecb, xecfg) < 0) { xdl_free_script(xscr); xdl_free_env(&xe); @@ -565,4 +610,3 @@ int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp, return 0; } - |