lib/min_str.nim
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import
tables,
strutils,
sequtils
import
../core/parser,
../core/value,
../core/interpreter,
../core/utils,
../packages/nim-sgregex/sgregex
proc str_module*(i: In) =
let def = i.define()
def.symbol("interpolate") do (i: In):
let vals = i.expect("quot", "string")
var q = vals[0]
let s = vals[1]
var strings = newSeq[string](0)
for el in q.qVal:
strings.add $$el
let res = s.strVal % strings
i.push res.newVal
def.symbol("strip") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.strip.newVal
def.symbol("split") do (i: In):
let vals = i.expect("string", "string")
let sep = vals[0]
let s = vals[1]
var q = newSeq[MinValue](0)
for e in s.strVal.split(sep.strVal):
q.add e.newVal
i.push q.newVal(i.scope)
def.symbol("join") do (i: In):
let vals = i.expect("'sym", "quot")
let s = vals[0]
let q = vals[1]
i.push q.qVal.mapIt($$it).join(s.getString).newVal
def.symbol("length") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.len.newVal
def.symbol("lowercase") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.toLowerAscii.newVal
def.symbol("uppercase") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.toUpperAscii.newVal
def.symbol("capitalize") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.capitalizeAscii.newVal
def.symbol("titleize") do (i: In):
let vals = i.expect("'sym")
let s = vals[0]
i.push s.getString.split(" ").mapIt(it.capitalizeAscii).join(" ").newVal
def.symbol("repeat") do (i: In):
let vals = i.expect("int", "string")
let n = vals[0]
let s = vals[1]
i.push s.getString.repeat(n.intVal).newVal
def.symbol("indent") do (i: In):
let vals = i.expect("int", "string")
let n = vals[0]
let s = vals[1]
i.push s.getString.indent(n.intVal).newVal
def.symbol("string") do (i: In):
let s = i.pop
i.push(($$s).newVal)
def.symbol("bool") do (i: In):
let v = i.pop
let strcheck = (v.isString and (v.getString == "false" or v.getString == ""))
let intcheck = v.isInt and v.intVal == 0
let floatcheck = v.isFloat and v.floatVal == 0
let boolcheck = v.isBool and v.boolVal == false
let quotcheck = v.isQuotation and v.qVal.len == 0
if strcheck or intcheck or floatcheck or boolcheck or quotcheck:
i.push false.newVal
else:
i.push true.newVal
def.symbol("int") do (i: In):
let s = i.pop
if s.isString:
i.push s.getString.parseInt.newVal
elif s.isFloat:
i.push s.floatVal.int.newVal
elif s.isInt:
i.push s
elif s.isBool:
if s.boolVal == true:
i.push 1.int.newVal
else:
i.push 0.int.newVal
else:
raiseInvalid("Cannot convert a quotation to an integer.")
def.symbol("float") do (i: In):
let s = i.pop
if s.isString:
i.push s.getString.parseFloat.newVal
elif s.isInt:
i.push s.intVal.float.newVal
elif s.isFloat:
i.push s
elif s.isBool:
if s.boolVal == true:
i.push 1.float.newVal
else:
i.push 0.float.newVal
else:
raiseInvalid("Cannot convert a quotation to float.")
def.symbol("search") do (i: In):
let vals = i.expect("string", "string")
let reg = vals[0]
let str = vals[1]
var matches = str.strVal.search(reg.strVal)
var res = newSeq[MinValue](matches.len)
for i in 0..matches.len-1:
res[i] = matches[i].newVal
i.push res.newVal(i.scope)
def.symbol("match") do (i: In):
let vals = i.expect("string", "string")
let reg = vals[0]
let str = vals[1]
if str.strVal.match(reg.strVal):
i.push true.newVal
else:
i.push false.newVal
def.symbol("replace") do (i: In):
let vals = i.expect("string", "string", "string")
let s_replace = vals[0]
let reg = vals[1]
let s_find = vals[2]
i.push sgregex.replace(s_find.strVal, reg.strVal, s_replace.strVal).newVal
def.symbol("regex") do (i: In):
let vals = i.expect("string", "string")
let reg = vals[0]
let str = vals[1]
let results = str.strVal =~ reg.strVal
var res = newSeq[MinValue](0)
for r in results:
res.add(r.newVal)
i.push res.newVal(i.scope)
def.symbol("=~") do (i: In):
i.push("regex".newSym)
def.symbol("%") do (i: In):
i.push("interpolate".newSym)
def.finalize("str")
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