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Diffstat (limited to '')
| -rw-r--r-- | amend/ast.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/amend/ast.c b/amend/ast.c new file mode 100644 index 000000000..f53efdc9c --- /dev/null +++ b/amend/ast.c @@ -0,0 +1,198 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include "ast.h" + +static const char gSpaces[] = + " " + " " + " " + " " + " " + " " + " "; +const int gSpacesMax = sizeof(gSpaces) - 1; + +static const char * +pad(int level) +{ + level *= 4; + if (level > gSpacesMax) { + level = gSpacesMax; + } + return gSpaces + gSpacesMax - level; +} + +void dumpBooleanValue(int level, const AmBooleanValue *booleanValue); +void dumpStringValue(int level, const AmStringValue *stringValue); + +void +dumpBooleanExpression(int level, const AmBooleanExpression *booleanExpression) +{ + const char *op; + bool unary = false; + + switch (booleanExpression->op) { + case AM_BOP_NOT: + op = "NOT"; + unary = true; + break; + case AM_BOP_EQ: + op = "EQ"; + break; + case AM_BOP_NE: + op = "NE"; + break; + case AM_BOP_AND: + op = "AND"; + break; + case AM_BOP_OR: + op = "OR"; + break; + default: + op = "??"; + break; + } + + printf("%sBOOLEAN %s {\n", pad(level), op); + dumpBooleanValue(level + 1, booleanExpression->arg1); + if (!unary) { + dumpBooleanValue(level + 1, booleanExpression->arg2); + } + printf("%s}\n", pad(level)); +} + +void +dumpFunctionArguments(int level, const AmFunctionArguments *functionArguments) +{ + int i; + for (i = 0; i < functionArguments->argc; i++) { + dumpStringValue(level, &functionArguments->argv[i]); + } +} + +void +dumpFunctionCall(int level, const AmFunctionCall *functionCall) +{ + printf("%sFUNCTION %s (\n", pad(level), functionCall->name); + dumpFunctionArguments(level + 1, functionCall->args); + printf("%s)\n", pad(level)); +} + +void +dumpStringValue(int level, const AmStringValue *stringValue) +{ + switch (stringValue->type) { + case AM_SVAL_LITERAL: + printf("%s\"%s\"\n", pad(level), stringValue->u.literal); + break; + case AM_SVAL_FUNCTION: + dumpFunctionCall(level, stringValue->u.function); + break; + default: + printf("%s<UNKNOWN SVAL TYPE %d>\n", pad(level), stringValue->type); + break; + } +} + +void +dumpStringComparisonExpression(int level, + const AmStringComparisonExpression *stringComparisonExpression) +{ + const char *op; + + switch (stringComparisonExpression->op) { + case AM_SOP_LT: + op = "LT"; + break; + case AM_SOP_LE: + op = "LE"; + break; + case AM_SOP_GT: + op = "GT"; + break; + case AM_SOP_GE: + op = "GE"; + break; + case AM_SOP_EQ: + op = "EQ"; + break; + case AM_SOP_NE: + op = "NE"; + break; + default: + op = "??"; + break; + } + printf("%sSTRING %s {\n", pad(level), op); + dumpStringValue(level + 1, stringComparisonExpression->arg1); + dumpStringValue(level + 1, stringComparisonExpression->arg2); + printf("%s}\n", pad(level)); +} + +void +dumpBooleanValue(int level, const AmBooleanValue *booleanValue) +{ + switch (booleanValue->type) { + case AM_BVAL_EXPRESSION: + dumpBooleanExpression(level, &booleanValue->u.expression); + break; + case AM_BVAL_STRING_COMPARISON: + dumpStringComparisonExpression(level, + &booleanValue->u.stringComparison); + break; + default: + printf("%s<UNKNOWN BVAL TYPE %d>\n", pad(1), booleanValue->type); + break; + } +} + +void +dumpWordList(const AmWordList *wordList) +{ + int i; + for (i = 0; i < wordList->argc; i++) { + printf("%s\"%s\"\n", pad(1), wordList->argv[i]); + } +} + +void +dumpCommandArguments(const AmCommandArguments *commandArguments) +{ + if (commandArguments->booleanArgs) { + dumpBooleanValue(1, commandArguments->u.b); + } else { + dumpWordList(commandArguments->u.w); + } +} + +void +dumpCommand(const AmCommand *command) +{ + printf("command \"%s\" {\n", command->name); + dumpCommandArguments(command->args); + printf("}\n"); +} + +void +dumpCommandList(const AmCommandList *commandList) +{ + int i; + for (i = 0; i < commandList->commandCount; i++) { + dumpCommand(commandList->commands[i]); + } +} |