Unexpected output while using `fgets` and `sscanf` for string parsing in C
After trying multiple solutions online, I still can't figure this out. This might be a silly question, but I'm having trouble with Hey everyone, I'm running into an issue that's driving me crazy... I'm working on a personal project and I'm having trouble with parsing input strings in C. I'm reading a line from a file using `fgets`, then attempting to parse the data using `sscanf`. The scenario arises when the input string contains unexpected whitespace, leading to incorrect values being read. Here's an example of the code: ```c #include <stdio.h> #include <stdlib.h> #include <string.h> int main() { FILE *file = fopen("data.txt", "r"); if (!file) { perror("Failed to open file"); return EXIT_FAILURE; } char buffer[100]; while (fgets(buffer, sizeof(buffer), file)) { char name[50]; int age; // Here I'm expecting "Name: John, Age: 30" int result = sscanf(buffer, "Name: %49[^,], Age: %d", name, &age); if (result != 2) { printf("Parsing failed: %s", buffer); } else { printf("Name: %s, Age: %d\n", name, age); } } fclose(file); return EXIT_SUCCESS; } ``` The `data.txt` file contains lines like this: ``` Name: John, Age: 30 Name: Alice, Age: 25 Name: Bob, Age: 22 ``` When I run the program, it prints: ``` Parsing failed: Name: Alice, Age: 25 ``` I suspect that the leading whitespace in " Alice" is causing `sscanf` to unexpected result even though I thought `%49[^,]` should handle this. I've also tried using `%49s` for the name, but that doesn't help with leading spaces. How can I modify my code to correctly parse the names regardless of leading whitespace? I'm using GCC version 11.2.0 on a Linux machine. Am I missing something obvious? Thanks for your help in advance! I'm using C latest in this project. I'm working on a web app that needs to handle this. Cheers for any assistance!