Deleted the trash folder per previous commit.

[cycript.git] / trash / Parser.mm

diff --git a/trash/Parser.mm b/trash/Parser.mm
deleted file mode 100644 (file)
index eb441ef..0000000
--- a/trash/Parser.mm
+++ /dev/null
@@ -1,232 +0,0 @@
-struct CYExpression {
-};
-
-struct CYToken {
-    virtual const char *Text() const = 0;
-};
-
-struct CYTokenPrefix :
-    virtual CYToken
-{
-};
-
-struct CYTokenInfix :
-    virtual CYToken
-{
-    virtual unsigned Precedence() const = 0;
-};
-
-struct CYTokenPostfix :
-    virtual CYToken
-{
-};
-
-struct CYTokenAssignment :
-    virtual CYToken
-{
-};
-
-struct CYTokenAccess :
-    virtual CYToken
-{
-};
-
-struct CYTokenLiteral :
-    CYExpression,
-    virtual CYToken
-{
-};
-
-struct CYTokenString :
-    CYTokenLiteral
-{
-};
-
-struct CYTokenNumber :
-    CYTokenLiteral
-{
-};
-
-struct CYTokenWord :
-    virtual CYToken
-{
-};
-
-struct CYTokenIdentifier :
-    CYExpression,
-    CYTokenWord
-{
-    const char *word_;
-
-    virtual const char *Text() const {
-        return word_;
-    }
-};
-
-struct CYTokenColon :
-    CYToken
-{
-};
-
-struct CYTokenComma :
-    CYToken
-{
-};
-
-struct CYTokenSemi :
-    CYToken
-{
-};
-
-struct CYTokenQuestion :
-    CYToken
-{
-};
-
-std::set<const char *, CStringMapLess> OperatorWords_;
-
-struct CYParser {
-    FILE *fin_;
-    FILE *fout_;
-
-    size_t capacity_;
-    char *data_;
-
-    size_t offset_;
-    size_t size_;
-
-    CYPool pool_;
-
-    CYParser(FILE *fin, FILE *fout) :
-        fin_(fin),
-        fout_(fout),
-        capacity_(1024),
-        data_(reinterpret_cast<char *>(malloc(capacity_))),
-        offset_(0),
-        size_(0)
-    {
-    }
-
-    ~CYParser() {
-        // XXX: this will not deconstruct in constructor failures
-        free(data_);
-    }
-
-    bool ReadLine(const char *prompt) {
-        offset_ = 0;
-        data_[capacity_ - 1] = ~'\0';
-
-      start:
-        if (fout_ != NULL) {
-            fputs(prompt, fout_);
-            fputs(" ", fout_);
-            fflush(fout_);
-        }
-
-        if (fgets(data_, capacity_, fin_) == NULL)
-            return false;
-
-      check:
-        if (data_[capacity_ - 1] != '\0') {
-            size_ = strlen(data_);
-            if (size_ == 0)
-                goto start;
-            if (data_[size_ - 1] == '\n') {
-                --size_;
-                goto newline;
-            }
-        } else if (data_[capacity_ - 2] == '\n') {
-            size_ = capacity_ - 2;
-          newline:
-            data_[size_] = '\0';
-        } else {
-            size_t capacity(capacity_ * 2);
-            char *data(reinterpret_cast<char *>(realloc(data_, capacity)));
-            _assert(data != NULL);
-            data_ = data;
-            size_ = capacity_ - 1;
-            capacity_ = capacity;
-            fgets(data_ + size_, capacity_ - size_, fin_);
-            goto check;
-        }
-
-        return true;
-    }
-
-    _finline void ScanRange(const CYRange &range) {
-        while (range[data_[offset_]])
-            ++offset_;
-    }
-
-    CYToken *ParseToken(const char *prompt) {
-        char next;
-
-        do {
-            if (offset_ == size_ && (prompt == NULL || !ReadLine(prompt)))
-                return false;
-            next = data_[offset_++];
-        } while (next == ' ' || next == '\t');
-
-        CYTokenType type;
-        size_t index(offset_ - 1);
-
-        if (WordStartRange_[next]) {
-            ScanRange(WordEndRange_);
-            type = CYTokenWord;
-        } else if (next == '.') {
-            char after(data_[offset_]);
-            if (after >= '0' && after <= '9')
-                goto number;
-            goto punctuation;
-        } else if (next >= '0' && next <= '9') {
-          number:
-            ScanRange(NumberRange_);
-            type = CYTokenLiteral;
-        } else if (PunctuationRange_[next]) {
-          punctuation:
-            ScanRange(PunctuationRange_);
-            type = CYTokenPunctuation;
-        } else if (next == '"' || next == '\'') {
-            for (;;) {
-                char after(data_[offset_++]);
-                if (after == '\\') {
-                    after = data_[offset_++];
-                    _assert(after != '\0');
-                    if (after == 'u') {
-                        offset_ += 4;
-                        _assert(offset_ < size_);
-                    }
-                } else if (after == next)
-                    break;
-            }
-
-            type = CYTokenLiteral;
-        } else if (next == '(' || next == '{' || next == '[') {
-            type = CYTokenOpen;
-        } else if (next == ')' || next == '}' || next == ']') {
-            type = CYTokenClose;
-        } else if (next == ';') {
-            type = CYTokenSemiColon;
-        } else {
-            printf(":( %u\n", next);
-            _assert(false);
-        }
-
-        char *value(pool_(data_ + index, offset_ - index));
-
-        if (type == CYTokenWord && OperatorWords_.find(value) != OperatorWords_.end())
-            type = CYTokenPunctuation;
-
-        CYToken *token(new(pool_) CYToken());
-        token->type_ = type;
-        token->value_ = value;
-        token->next_ = token;
-        token->prev_ = &token->next_;
-        return token;
-    }
-
-    CYToken *ParseExpression(const char *prompt) {
-        CYToken *token(ParseToken(prompt));
-        return token;
-    }
-};