Function Repository Resource:

CodeCases

Source Notebook

Isolate code structures

Contributed by: Wolfram Research

ResourceFunction["CodeCases"][File[filename], case]

gives a list of all cases of code in filename identified as being of type case.

ResourceFunction["CodeCases"]["string", case]

gives a list of all cases of code in the program given by string identified as being of type case.

Details

The list of case types can be found in the clang documentation.

Some examples of case types include the following:

IfStmt

An if statement

WhileStmt

A while statement

DoStmt

A do statement

GotoStmt

A goto statement

DeclStmt

A declaration

Examples

Basic Examples (4)

Isolate the if statements from a C source file:

In[1]:=

$addcString = "/* add.c -- Read a sequence of positive integers and print them \n * out together with their sum. Use a Sentinel value\n * (say 0) to determine when the sequence has terminated.\n */\n\n#include <stdio.h>\n#define SENTINEL 0\n\nint main(void) {\n int sum = 0; /* The sum of numbers already read */\n int current; /* The number just read */\n\n do {\n printf(\"\\nEnter an integer > \");\n scanf(\"%d\", &current);\n if (current > SENTINEL)\n sum = sum + current;\n } while (current > SENTINEL);\n printf(\"\\nThe sum is %d\\n\", sum);\n}\n"; ResourceFunction["CodeCases"][addcString, "IfStmt"]$