diff options
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/builtin.c | 2 | ||||
| -rw-r--r-- | Src/hist.c | 69 |
2 files changed, 45 insertions, 26 deletions
diff --git a/Src/builtin.c b/Src/builtin.c index bca0ab33f..68155d2c6 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -2777,7 +2777,7 @@ bin_print(char *name, char **args, char *ops, int func) int nwords = 0, nlen, iwords; char **pargs = args; - ent = prepnexthistent(zleactive ? curhist++ : ++curhist); + ent = prepnexthistent(); while (*pargs++) nwords++; if ((ent->nwords = nwords)) { diff --git a/Src/hist.c b/Src/hist.c index e869e3a2e..9f35c4cd2 100644 --- a/Src/hist.c +++ b/Src/hist.c @@ -704,6 +704,36 @@ nohwe(void) { } +/* these functions handle adding/removing curline to/from the hist_ring */ + +static void +linkcurline(void) +{ + if (!hist_ring) + hist_ring = curline.up = curline.down = &curline; + else { + curline.up = hist_ring; + curline.down = hist_ring->down; + hist_ring->down = hist_ring->down->up = &curline; + hist_ring = &curline; + } + curline.histnum = ++curhist; +} + +static void +unlinkcurline(void) +{ + curline.up->down = curline.down; + curline.down->up = curline.up; + if (hist_ring == &curline) { + if (!histlinect) + hist_ring = NULL; + else + hist_ring = curline.up; + } + curhist--; +} + /* initialize the history mechanism */ /**/ @@ -745,15 +775,7 @@ hbegin(int dohist) if (interact && isset(SHINSTDIN) && !strin) { histactive = HA_ACTIVE; attachtty(mypgrp); - if (!hist_ring) - hist_ring = curline.up = curline.down = &curline; - else { - curline.up = hist_ring; - curline.down = hist_ring->down; - hist_ring->down = hist_ring->down->up = &curline; - hist_ring = &curline; - } - curline.histnum = ++curhist; + linkcurline(); defev = addhistnum(curhist, -1, HIST_FOREIGN); } else histactive = HA_ACTIVE | HA_NOINC; @@ -883,9 +905,13 @@ gethistent(int ev, int nearmatch) /**/ Histent -prepnexthistent(int histnum) +prepnexthistent(void) { Histent he; + int curline_in_ring = hist_ring == &curline; + + if (curline_in_ring) + unlinkcurline(); if (histlinect < histsiz) { he = (Histent)zcalloc(sizeof *he); @@ -920,8 +946,10 @@ prepnexthistent(int histnum) } freehistdata(hist_ring = he, 0); } - hist_ring->histnum = histnum; - return hist_ring; + he->histnum = ++curhist; + if (curline_in_ring) + linkcurline(); + return he; } /* say we're done using the history mechanism */ @@ -937,17 +965,8 @@ hend(void) "BUG: chline is NULL in hend()"); if (histdone & HISTFLAG_SETTY) settyinfo(&shttyinfo); - if (!(histactive & HA_NOINC)) { - curline.up->down = curline.down; - curline.down->up = curline.up; - if (hist_ring == &curline) { - if (!histlinect) - hist_ring = NULL; - else - hist_ring = curline.up; - } - curhist--; - } + if (!(histactive & HA_NOINC)) + unlinkcurline(); if (histactive & (HA_NOSTORE|HA_NOINC)) { zfree(chline, hlinesz); zfree(chwords, chwordlen*sizeof(short)); @@ -1023,7 +1042,7 @@ hend(void) freehistdata(he, 0); } else { keepflags = 0; - he = prepnexthistent(++curhist); + he = prepnexthistent(); } he->text = ztrdup(chline); @@ -1777,7 +1796,7 @@ readhistfile(char *fn, int err, int readflags) lasthist.stim = stim; } - he = prepnexthistent(++curhist); + he = prepnexthistent(); he->text = ztrdup(pt); he->flags = newflags; if ((he->stim = stim) == 0) |