Csope

Fork of Cscope, with various improvements, because cscope is good and shall not be forgotten. While the original's mainentence seems abandoned and as far as I can tell you need a PhD in autoconf to compile the latest version, Csope is alive and well.

Demo

TODO: fill in

Before/After

TODO: fill in

Features

Search for

• C symbol
• global definition
• assignments to specified symbol
• functions called by specified function
• functions calling specified function
• text string
• egrep pattern
• file
• files #including specified file

...and open with your editor.

Batch change search results interactively.

Save/load/pipe results.

Interface

            <-- Tab -->
  +------------Message-------------+           +--------------------------------+
A |+--------------+---------------+|           |+------------------------------+|
| || Input Window | Result window ||           ||                              ||
| |+--------------+               ||     ?     ||                              ||
  || Mode  Window |               ||   ---->   ||            Help              ||
% ||              |               ||   <----   ||                              ||
  ||              |               ||    ...    ||                              ||
| ||              |               ||           ||                              ||
| ||              |               ||           ||                              ||
V |+--------------+---------------+|           |+------------------------------+|
  +-----------Tool Tips------------+           +--------------------------------+

Usacases

Csope shines at exploring stranger and obsecure code bases due to its TUI. It sometimes gets mislabeled as a code navigation tool, but the original documentation describes it best as a “code browsing tool”. Many tools can jump you to a definition or grep for patterns, but Csope is unqie in that it allows for those and many other functionalities while providing you with a very comprehansible list of all results, ready to fire up your editor at just the spot. An example of its excelence is this project. The Cscope codebase used to be a total mess, fixing it would have been a lost cause, if not for Cscope itself. Well, Csope now.

Improvements/Changes

User side

• renamed the program, because “cscope” is annoying to type
• improved gui /pending/
• GNU Readline integration (ie. VI/EMACS mode, command history) /pending/

To the code

• nuked autoconf, replaced with single Makefile
• reorganized main()
• encapsulated changes to the TUI into display.c
• encapsulated searching into find.c
• removed “scanner.l” which seems to be an anchient version (and redundant copy) of “fscanner.l” forgotten by all
• removed macro hell put in place to allow compiling on a dead badger
• replaced repeated inline #ifdef KEY_*-s with guaranteed definitions
• removed random commets giving tips for and refering to specific issues
• use stdbool instead of YES/NO macros
• saved kilobytes by stripping trailing whitespace
• FILE* refsfound used to be rewind()-ed everytime the reads were not sequencial

Project structure /probably move to documentation/

Component	Purpose
main.c	generic init functions, main() and primary event loops (and junk)
display.c	all functions directly dealing with NCurses
input.c	top layer of functions dealing with user input; migth dispatch to readline
find.c	searching functions
globals.h	an inherited curse; global var/prototype hell
readline.c	all functions directly dealing with GNU Readline; responsible for line editing in input mode
help.c	all functions dealing with help messages

TODO /move soon/

• recursive macro function to assign KEY_* default values; look for a new and shiny preprocessor?
• sort out constants.h
• scrollbar() uses magic int literals?
• Ordering function declarations in global.h by alpha order is not smart
• lineflagafterfile is stupid
• library.h...; “private library”, in a program using 90 globals; ffs
• sort out the global hell
• changestring() forks sh to execute an ed script...
• was there really ever a scrollbar?

Original

• Display the current case mode (^C) onscreen
• emacs like key bindings ^S for searching (^Y) Up/dwn Arrow support Next/Prev field. ?? Inline editing on Input fields ( ??^B/^F ) ^X^C to quit ( ^Q ??) Pagdwn/PageUp/+/-
• Same capabilities as interactive in non interactive (one shot) mode
• Provide some how-do-I-use-this-thing doc.
• Replace invlib.[ch] by real database. Failing that, at least sanitize it.

BUGS

• Changing text double frees: free(): double free detected in tcache 2 Aborted
• Changing text can crash without replacing text and leaving the console ncursed

Future features / contributor wishlist

• providing support for other languages by integrating new lexers (e.g. ctag's)