8000 implement ast file to project · fadel-hasan/python-compiler@bd32af2 · GitHub
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implement ast file to project
1 parent 94b5b21 commit bd32af2

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6 files changed

+584
-113
lines changed

6 files changed

+584
-113
lines changed

‎ast.cpp

Lines changed: 1 addition & 0 deletions
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#include "python_ast_node.hpp"

‎indent_dedent_rule.txt

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/*
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%{
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if(isEmpty(myStack)) {
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push(&myStack,0);
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}
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%} */
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/* ^[ \t]* { */
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/*
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* Handle indentation as described in Python docs linked above.
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* Note that this pattern treats leading spaces and leading tabs
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* equivalently, which could cause some unexpected behavior if
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* they're combined in a single line. For the purposes of this
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* project, that's OK.
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*/
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/* if (peek(myStack) < (int)yyleng) { */
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/*
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* If the current indentation level is greater than the
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* previous indentation level (stored at the top of the stack),
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* then emit an INDENT and push the new indentation level onto
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* the stack.
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*/
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/* push(&myStack,yyleng);
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printf("INDENT\n");
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return INDENT;
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} else { */
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/*
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* If the current indentation level is less than or equal to
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* the previous indentation level, pop indentation levels off
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* the stack until the top is equal to the current indentation
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* level. Emit a DEDENT for each element popped from the stack.
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*/
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/* while (!isEmpty(myStack) && peek(myStack) != (int)yyleng) {
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pop(&myStack);
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printf("DEDENT\n");
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return DEDENT;
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} */
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/*
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* If we popped everythin g off the stack, that means the
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* current indentation level didn't match any on the stack,
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* which is an indentation error.
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*/
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/* if (isEmpty(myStack)) {
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printf("Error: Incorrect indentation on line %d"
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,yylineno);
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return 1;
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}
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}
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} */
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/* ^[^ \t\n]+ { */
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/*
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* If we find a line that's not indented, pop all indentation
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* levels off the stack, and emit a DEDENT for each one. Then,
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* call REJECT, so the next rule matching this token is also
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* applied.
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*/
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/* while(peek(myStack) != 0) {
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pop(&myStack);
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printf("DEDENT\n");
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return DEDENT;
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}
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REJECT;
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}
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\r?\n { */
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/* printf("NEWLINE\n");
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return NEWLINE;
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}
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<<EOF>> { */
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/*
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* If we 8000 reach the end of the file, pop all indentation levels
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* off the stack, and emit a DEDENT for each one.
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*/
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/* while(peek(myStack) != 0) {
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pop(&myStack);
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printf("DEDENT\n");
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return DEDENT;
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}
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} */

‎parser.y

Lines changed: 33 additions & 31 deletions
Original file line numberDiff line numberDiff line change
@@ -41,15 +41,17 @@ program: /*empty program*/
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;
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4343

44-
statements:
45-
statement NEWLINE {printf("one statment\n");}
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| statements statement NEWLINE {printf("many statment\n");}
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statements:
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statement {printf("one statment\n");}
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| statements statement {printf("many statment\n");}
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;
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49-
statement: compound_stmt {printf("compound stmt\n");}
50-
| simple_stmt {printf("simple stmt\n");}
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statement: compound_stmt NEWLINE {printf("compound stmt\n");}
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| simple_stmt NEWLINE {printf("simple stmt\n");}
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/* | NEWLINE */
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;
5253

54+
5355
simple_stmt: expression {printf("expression\n");}
5456
| assignment {printf("assignment\n");}
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| return_stmt {printf("return stmt\n");}
@@ -155,16 +157,6 @@ with_item_list: with_item
155157
with_item: IDENTIFIER '(' STRING ')' AS IDENTIFIER
156158
;
157159

158-
/* expression
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: expression '+' expression
160-
| expression '-' expression
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| expression MUL expression
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| expression '/' expression
163-
| '-' expression %prec UMINUS
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| '(' expression ')'
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| atom
166-
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; */
168160

169161

170162

@@ -194,19 +186,7 @@ elif_stmt : elif_header block
194186
;
195187
elif_header : ELIF named_expression COLON
196188
;
197-
/*
198-
if_stmt: IF named_expression COLON block elif_stmt
199-
| IF named_expression COLON block else_block
200-
;
201189

202-
elif_stmt:
203-
| ELIF named_expression COLON block else_block
204-
| elif_stmt ELIF named_expression COLON block else_block
205-
;
206-
207-
else_block:
208-
| ELSE COLON block
209-
; */
210190

211191
named_expression: assignment_expression
212192
| comparison
@@ -270,17 +250,17 @@ expression: primary_expression
270250
| '(' expression ')'
271251
;
272252

273-
for_stmt: for_header changes block
253+
for_stmt: for_header changes COLON block
274254

275255
for_header: FOR IDENTIFIER IN
276256

277257
changes: IDENTIFIER
278258
|range
279259

280-
range: RANGE LBRACKET myrange RBRACKET
281-
| RANGE LBRACKET myfunc RBRACKET
260+
range: RANGE '(' myrange ')'
261+
| RANGE '(' myfunc ')'
282262

283-
myfunc: IDENTIFIER LBRACKET RBRACKET
263+
myfunc: IDENTIFIER '(' ')'
284264

285265
myrange : NUMBER
286266
| NUMBER ',' NUMBER
@@ -353,8 +333,30 @@ dict_pattern_entry
353333
: pattern COLON pattern
354334
;
355335

336+
/* expression
337+
: expression '+' expression
338+
| expression '-' expression
339+
| expression MUL expression
340+
| expression '/' expression
341+
| '-' expression %prec UMINUS
342+
| '(' expression ')'
343+
| atom
344+
345+
; */
346+
347+
/*
348+
if_stmt: IF named_expression COLON block elif_stmt
349+
| IF named_expression COLON block else_block
350+
;
356351
352+
elif_stmt:
353+
| ELIF named_expression COLON block else_block
354+
| elif_stmt ELIF named_expression COLON block else_block
355+
;
357356
357+
else_block:
358+
| ELSE COLON block
359+
; */
358360
/* atom:
359361
IDENTIFIER
360362
| NUMBER

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