Category talk:Wren-str: Difference between revisions
→Source code: Added indent, dedent and tidy methods to Str class.
(→Source code: Added Str.bisect and also made some changes to the Greek class.) |
(→Source code: Added indent, dedent and tidy methods to Str class.) |
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Line 417:
// Convenience version of 'replace' where 'skip' is always zero.
static replace(s, from, to, n) { replace(s, from, to, n, 0) }
// Adds 'by' to the start of each line of 's'
// and returns the result.
static indent(s, by) {
if (!(s is String)) Fiber.abort("First argument must be a string.")
if (!(by is String)) Fiber.abort("Second argument must be a string.")
var lines = s.split("\n")
return lines.map { |line| by + line }.join("\n")
}
// Removes 'by' from the start of each line of 's' which begins with it
// and returns the result.
static dedent(s, by) {
if (!(s is String)) Fiber.abort("First argument must be a string.")
if (!(by is String)) Fiber.abort("Second argument must be a string.")
var lines = s.split("\n")
var c = by.bytes.count
return lines.map { |line|
if (line.startsWith(by)) return line[c..-1]
return line
}.join("\n")
}
// Removes all spaces and tabs from the end of each line of s
// and returns the result.
static tidy(s) {
if (!(s is String)) Fiber.abort("Argument must be a string.")
var lines = s.split("\n")
return lines.map { |line| line.trimEnd(" \t") }.join("\n")
}
// Returns 's' repeated 'reps' times.
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