43 lines
1019 B
Go
43 lines
1019 B
Go
// Copyright 2010 The postscript-go Authors. All rights reserved.
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// created: 13/12/2010 by Laurent Le Goff
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// Miscellaneous Operators
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package postscript
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import (
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"log"
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)
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//proc bind proc Replace operator names in proc with operators; perform idiom recognition
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func bind(interpreter *Interpreter) {
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pdef := interpreter.PopProcedureDefinition()
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values := make([]Value, len(pdef.Values))
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for i, value := range pdef.Values {
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if s, ok := value.(string); ok {
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firstChar := s[0]
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if firstChar != '(' && firstChar != '/' {
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v, _ := interpreter.FindValueInDictionaries(s)
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operator, isOperator := v.(Operator)
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if v == nil {
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log.Printf("Can't find def: %s\n", s)
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}
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if isOperator {
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values[i] = operator
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} else {
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values[i] = value
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}
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} else {
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values[i] = value
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}
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} else {
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values[i] = value
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}
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}
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pdef.Values = values
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interpreter.Push(pdef)
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}
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func initMiscellaneousOperators(interpreter *Interpreter) {
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interpreter.SystemDefine("bind", NewOperator(bind))
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}
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