cheat/internal/sheet/search.go

37 lines
764 B
Go

package sheet
import (
"regexp"
"strings"
)
// Search searches for regexp matches in a cheatsheet's text, and optionally
// colorizes matching strings.
func (s *Sheet) Search(reg *regexp.Regexp) []Match {
// record matches
matches := []Match{}
// search through the cheatsheet's text line by line
// TODO: searching line-by-line is surely the "naive" approach. Revisit this
// later with an eye for performance improvements.
for linenum, line := range strings.Split(s.Text, "\n") {
// exit early if the line doesn't match the regex
if !reg.MatchString(line) {
continue
}
// init the match
m := Match{
Line: linenum + 1,
Text: strings.TrimSpace(line),
}
// record the match
matches = append(matches, m)
}
return matches
}