diff options
Diffstat (limited to 'src/cmd/acme/addr.c')
| -rw-r--r-- | src/cmd/acme/addr.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/cmd/acme/addr.c b/src/cmd/acme/addr.c index 861e5e01..2ccae960 100644 --- a/src/cmd/acme/addr.c +++ b/src/cmd/acme/addr.c @@ -49,6 +49,27 @@ isregexc(int r) return FALSE; } +// nlcounttopos starts at q0 and advances nl lines, +// being careful not to walk past the end of the text, +// and then nr chars, being careful not to walk past +// the end of the current line. +// It returns the final position. +long +nlcounttopos(Text *t, long q0, long nl, long nr) +{ + while(nl > 0 && q0 < t->file->b.nc) { + if(textreadc(t, q0++) == '\n') + nl--; + } + if(nl > 0) + return q0; + while(nr > 0 && q0 < t->file->b.nc && textreadc(t, q0) != '\n') { + q0++; + nr--; + } + return q0; +} + Range number(uint showerr, Text *t, Range r, int line, int dir, int size, int *evalp) { |