40 lines
1.0 KiB
Plaintext
40 lines
1.0 KiB
Plaintext
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// StringStd — minimal standard string helpers (commonized API)
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static box StringStd {
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length(s) {
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if s == null { return 0 }
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return s.length()
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}
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substring(s, start, end) {
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if s == null { return "" }
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if start == null { start = 0 }
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if end == null { end = s.length() }
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return s.substring(start, end)
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}
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indexOf(s, needle, start) {
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if s == null { return -1 }
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if needle == null { needle = "" }
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if start == null { return s.indexOf(needle) }
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return s.indexOf(needle, start)
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}
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lastIndexOf(s, needle, start) {
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if s == null { return -1 }
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if needle == null { needle = "" }
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if start == null { return s.lastIndexOf(needle) }
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return s.lastIndexOf(needle, start)
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}
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esc_json(s) {
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if s == null { return "" }
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local out = ""
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local i = 0
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local n = s.length()
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loop(i < n) {
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local ch = s.substring(i, i+1)
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if ch == "\\" { out = out + "\\\\" } else { if ch == "\"" { out = out + "\\\"" } else { out = out + ch } }
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i = i + 1
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}
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return out
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}
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}
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