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wts.go
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wts.go
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// Author: Niels A.D.
// Project: gowarcraft3 (https://github.com/nielsAD/gowarcraft3)
// License: Mozilla Public License, v2.0
package w3m
import (
"bufio"
"io"
"regexp"
"strconv"
"strings"
)
// TriggerString recognition
var reWTS = regexp.MustCompile("^STRING (\\d+)$")
var reTS = regexp.MustCompile("^TRIGSTR_(\\d+)$")
// TriggerStrings from war3map.wts
func (m *Map) TriggerStrings() (map[int]string, error) {
if m.ts == nil {
wts, err := m.Archive.Open("war3map.wts")
if err != nil {
return nil, err
}
defer wts.Close()
buf := bufio.NewReader(wts)
if _, err := buf.Discard(1); err != nil && err != io.EOF {
return nil, err
}
var ts = make(map[int]string)
for {
l, err := buf.ReadString('\n')
if err == io.EOF {
break
} else if err != nil {
return nil, err
}
match := reWTS.FindStringSubmatch(strings.TrimSpace(l))
if len(match) < 2 {
continue
}
id, err := strconv.Atoi(match[1])
if err != nil {
continue
}
for {
p1, err := buf.ReadString('\n')
if err != nil {
return nil, err
}
if strings.TrimSpace(p1) == "{" {
break
} else if !strings.HasPrefix(p1, "//") {
return nil, ErrBadFormat
}
}
var sb strings.Builder
for {
l, err := buf.ReadString('\n')
if err != nil {
return nil, err
}
if strings.TrimSpace(l) == "}" {
break
}
if sb.Len() > 0 {
sb.WriteByte('\n')
}
sb.WriteString(strings.TrimRight(l, "\r\n"))
}
ts[id] = sb.String()
}
m.ts = ts
}
return m.ts, nil
}
// ExpandString expands trigger strings in s and returns the expanded string
func (m *Map) ExpandString(s string) (string, error) {
ts, err := m.TriggerStrings()
if err != nil {
return "", err
}
match := reTS.FindStringSubmatch(s)
if ts == nil || len(match) == 0 {
return s, nil
}
id, err := strconv.Atoi(match[1])
if err != nil {
return "", err
}
return ts[id], nil
}