diff options
author | C. McEnroe | 2020-02-09 02:33:53 -0500 |
---|---|---|
committer | C. McEnroe | 2020-02-09 02:33:53 -0500 |
commit | 40e362f505b2b48656791b25193d67ff4af9a11b (patch) | |
tree | 86a163ab771a5008c52103729099375f82f62b78 /edit.c | |
parent | 82cf44585831ea5a237f3b603a9d8ffd2d350b54 (diff) |
Hook up tab-complete
Diffstat (limited to 'edit.c')
-rw-r--r-- | edit.c | 85 |
1 files changed, 82 insertions, 3 deletions
diff --git a/edit.c b/edit.c index 38dadcd..f058f0a 100644 --- a/edit.c +++ b/edit.c @@ -60,7 +60,78 @@ static void delete(size_t index, size_t count) { len -= count; } +static struct { + size_t pos; + size_t pre; + size_t len; +} tab; + +static void tabComplete(size_t id) { + if (!tab.len) { + tab.pos = pos; + while (tab.pos && buf[tab.pos - 1] != L' ') tab.pos--; + if (tab.pos == pos) return; + tab.pre = pos - tab.pos; + tab.len = tab.pre; + } + + char mbs[MB_LEN_MAX * tab.pre + 1]; + const wchar_t *ptr = &buf[tab.pos]; + size_t n = wcsnrtombs(mbs, &ptr, tab.pre, sizeof(mbs) - 1, NULL); + assert(n != (size_t)-1); + mbs[n] = '\0'; + + const char *comp = complete(id, mbs); + if (!comp) comp = complete(id, mbs); + if (!comp) { + tab.len = 0; + return; + } + + wchar_t wcs[strlen(comp) + 1]; + n = mbstowcs(wcs, comp, sizeof(wcs)); + assert(n != (size_t)-1); + if (tab.pos + n + 2 > Cap) { + completeReject(); + tab.len = 0; + return; + } + + delete(tab.pos, tab.len); + if (wcs[0] != L'/' && !tab.pos) { + tab.len = n + 2; + reserve(tab.pos, tab.len); + buf[tab.pos + n + 0] = L':'; + buf[tab.pos + n + 1] = L' '; + } else if ( + tab.pos >= 2 && (buf[tab.pos - 2] == L':' || buf[tab.pos - 2] == L',') + ) { + tab.len = n + 2; + reserve(tab.pos, tab.len); + buf[tab.pos - 2] = L','; + buf[tab.pos + n + 0] = L':'; + buf[tab.pos + n + 1] = L' '; + } else { + tab.len = n + 1; + reserve(tab.pos, tab.len); + buf[tab.pos + n] = L' '; + } + memcpy(&buf[tab.pos], wcs, sizeof(*wcs) * n); + pos = tab.pos + tab.len; +} + +static void tabAccept(void) { + completeAccept(); + tab.len = 0; +} + +static void tabReject(void) { + completeReject(); + tab.len = 0; +} + void edit(size_t id, enum Edit op, wchar_t ch) { + size_t init = pos; switch (op) { break; case EditHome: pos = 0; break; case EditEnd: pos = len; @@ -75,12 +146,20 @@ void edit(size_t id, enum Edit op, wchar_t ch) { if (pos < Cap) buf[pos++] = ch; } break; case EditComplete: { - // TODO + tabComplete(id); + return; } break; case EditEnter: { - pos = 0; + tabAccept(); command(id, editBuffer(NULL)); - len = 0; + len = pos = 0; + return; } } + + if (pos < init) { + tabReject(); + } else { + tabAccept(); + } } |