284 lines
8.3 KiB
Python
284 lines
8.3 KiB
Python
#!/usr/bin/env python3
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# ScintillaAPIFacer.py - regenerate the ScintillaTypes.h, and ScintillaMessages.h
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# from the Scintilla.iface interface definition file.
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# Implemented 2019 by Neil Hodgson neilh@scintilla.org
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# Requires Python 3.6 or later
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import pathlib
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import Face
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import FileGenerator
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import HFacer
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namespace = "Scintilla::"
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typeAliases = {
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# Convert iface types to C++ types
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# bool and void are OK as is
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"cells": "const char *",
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"colour": "Colour",
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"colouralpha": "ColourAlpha",
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"findtext": "void *",
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"formatrange": "void *",
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"int": "int",
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"keymod": "int",
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"line": "Line",
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"pointer": "void *",
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"position": "Position",
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"string": "const char *",
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"stringresult": "char *",
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"textrange": "void *",
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}
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basicTypes = [
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"bool",
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"char *",
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"Colour",
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"ColourAlpha",
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"const char *",
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"int",
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"intptr_t",
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"Line",
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"Position",
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"void",
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"void *",
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]
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deadValues = [
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"INDIC_CONTAINER",
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"INDIC_IME",
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"INDIC_IME_MAX",
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"INDIC_MAX",
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]
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def ActualTypeName(type, identifier=None):
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if type in typeAliases:
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return typeAliases[type]
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else:
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return type
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def IsEnumeration(s):
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if s in ["Position", "Line", "Colour", "ColourAlpha"]:
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return False
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return s[:1].isupper()
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def JoinTypeAndIdentifier(type, identifier):
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# Add a space to separate type from identifier unless type is pointer
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if type.endswith("*"):
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return type + identifier
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else:
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return type + " " + identifier
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def ParametersArgsCallname(v):
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parameters = ""
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args = ""
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callName = "Call"
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param1TypeBase = v["Param1Type"]
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param1Name = v["Param1Name"]
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param1Type = ActualTypeName(param1TypeBase, param1Name)
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param1Arg = ""
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if param1Type:
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castName = param1Name
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if param1Type.endswith("*"):
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castName = "reinterpret_cast<uintptr_t>(" + param1Name + ")"
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elif param1Type not in basicTypes:
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castName = "static_cast<uintptr_t>(" + param1Name + ")"
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if IsEnumeration(param1TypeBase):
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param1Type = namespace + param1Type
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param1Arg = JoinTypeAndIdentifier(param1Type, param1Name)
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parameters = param1Arg
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args = castName
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param2TypeBase = v["Param2Type"]
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param2Name = v["Param2Name"]
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param2Type = ActualTypeName(param2TypeBase, param2Name)
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param2Arg = ""
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if param2Type:
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castName = param2Name
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if param2Type.endswith("*"):
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if param2Type == "const char *":
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callName = "CallString"
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else:
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callName = "CallPointer"
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elif param2Type not in basicTypes:
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castName = "static_cast<intptr_t>(" + param2Name + ")"
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if IsEnumeration(param2TypeBase):
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param2Type = namespace + param2Type
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param2Arg = JoinTypeAndIdentifier(param2Type, param2Name)
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if param1Arg:
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parameters = parameters + ", "
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parameters = parameters + param2Arg
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if not args:
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args = args + "0"
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if args:
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args = args + ", "
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args = args + castName
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if args:
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args = ", " + args
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return (parameters, args, callName)
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def ParametersExceptLast(parameters):
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if "," in parameters:
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return parameters[:parameters.rfind(",")]
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else:
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return ""
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def HMessages(f):
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out = ["enum class Message {"]
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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if v["FeatureType"] in ["fun", "get", "set"]:
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out.append("\t" + name + " = " + v["Value"] + ",")
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out.append("};")
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return out
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def HEnumerations(f):
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out = []
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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# Only want non-deprecated enumerations and lexers are not part of Scintilla API
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if v["FeatureType"] in ["enu"] and name != "Lexer":
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out.append("")
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prefixes = v["Value"].split()
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#out.append("enum class " + name + " {" + " // " + ",".join(prefixes))
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out.append("enum class " + name + " {")
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for valueName in f.order:
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prefixMatched = ""
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for p in prefixes:
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if valueName.startswith(p) and valueName not in deadValues:
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prefixMatched = p
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if prefixMatched:
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vEnum = f.features[valueName]
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valueNameNoPrefix = ""
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if valueName in f.aliases:
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valueNameNoPrefix = f.aliases[valueName]
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else:
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valueNameNoPrefix = valueName[len(prefixMatched):]
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if not valueNameNoPrefix: # Removed whole name
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valueNameNoPrefix = valueName
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if valueNameNoPrefix.startswith("SC_"):
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valueNameNoPrefix = valueNameNoPrefix[len("SC_"):]
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pascalName = Face.PascalCase(valueNameNoPrefix)
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out.append("\t" + pascalName + " = " + vEnum["Value"] + ",")
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out.append("};")
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out.append("")
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out.append("enum class Notification {")
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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if v["FeatureType"] in ["evt"]:
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out.append("\t" + name + " = " + v["Value"] + ",")
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out.append("};")
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return out
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def HConstants(f):
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# Constants not in an eumeration
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out = []
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allEnumPrefixes = [
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"SCE_", # Lexical styles
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"SCI_", # Message number allocation
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"SCEN_", # Notifications sent with WM_COMMAND
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]
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for _n, v in f.features.items():
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if v["Category"] != "Deprecated":
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# Only want non-deprecated enumerations and lexers are not part of Scintilla API
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if v["FeatureType"] in ["enu"]:
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allEnumPrefixes.extend(v["Value"].split())
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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# Only want non-deprecated enumerations and lexers are not part of Scintilla API
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if v["FeatureType"] in ["val"]:
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hasPrefix = False
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for prefix in allEnumPrefixes:
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if name.startswith(prefix):
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hasPrefix = True
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if not hasPrefix:
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if name.startswith("SC_"):
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name = name[3:]
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type = "int"
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if name == "INVALID_POSITION":
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type = "Position"
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out.append("constexpr " + type + " " + Face.PascalCase(name) + " = " + v["Value"] + ";")
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return out
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def HMethods(f):
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out = []
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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if v["FeatureType"] in ["fun", "get", "set"]:
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if v["FeatureType"] == "get" and name.startswith("Get"):
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name = name[len("Get"):]
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retType = ActualTypeName(v["ReturnType"])
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if IsEnumeration(retType):
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retType = namespace + retType
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parameters, args, callName = ParametersArgsCallname(v)
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out.append("\t" + JoinTypeAndIdentifier(retType, name) + "(" + parameters + ");")
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# Extra method for stringresult that returns std::string
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if v["Param2Type"] == "stringresult":
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out.append("\t" + JoinTypeAndIdentifier("std::string", name) + \
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"(" + ParametersExceptLast(parameters) + ");")
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return out
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def CXXMethods(f):
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out = []
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for name in f.order:
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v = f.features[name]
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if v["Category"] != "Deprecated":
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if v["FeatureType"] in ["fun", "get", "set"]:
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msgName = "Message::" + name
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if v["FeatureType"] == "get" and name.startswith("Get"):
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name = name[len("Get"):]
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retType = ActualTypeName(v["ReturnType"])
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parameters, args, callName = ParametersArgsCallname(v)
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returnIfNeeded = "return " if retType != "void" else ""
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out.append(JoinTypeAndIdentifier(retType, "ScintillaCall::" + name) + "(" + parameters + ")" + " {")
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retCast = ""
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retCastEnd = ""
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if retType not in basicTypes or retType in ["int", "Colour", "ColourAlpha"]:
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if IsEnumeration(retType):
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retType = namespace + retType
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retCast = "static_cast<" + retType + ">("
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retCastEnd = ")"
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elif retType in ["void *"]:
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retCast = "reinterpret_cast<" + retType + ">("
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retCastEnd = ")"
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out.append("\t" + returnIfNeeded + retCast + callName + "(" + msgName + args + ")" + retCastEnd + ";")
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out.append("}")
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out.append("")
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# Extra method for stringresult that returns std::string
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if v["Param2Type"] == "stringresult":
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paramList = ParametersExceptLast(parameters)
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argList = ParametersExceptLast(args)
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out.append(JoinTypeAndIdentifier("std::string", "ScintillaCall::" + name) + \
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"(" + paramList + ") {")
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out.append("\treturn CallReturnString(" + msgName + argList + ");")
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out.append("}")
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out.append("")
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return out
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def RegenerateAll(root):
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HFacer.RegenerateAll(root, False)
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f = Face.Face()
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include = root / "include"
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f.ReadFromFile(include / "Scintilla.iface")
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FileGenerator.Regenerate(include / "ScintillaMessages.h", "//", HMessages(f))
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FileGenerator.Regenerate(include / "ScintillaTypes.h", "//", HEnumerations(f), HConstants(f))
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FileGenerator.Regenerate(include / "ScintillaCall.h", "//", HMethods(f))
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FileGenerator.Regenerate(root / "call" / "ScintillaCall.cxx", "//", CXXMethods(f))
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if __name__ == "__main__":
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RegenerateAll(pathlib.Path(__file__).resolve().parent.parent)
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