Improve the docs.

* doc/cflow.texi: Document symbol classes and aliases.
* src/cflow.rc: Minor change.
* src/main.c: Mention aliasing feature in the docstring for --symbol.

2 files changed, 3 insertions, 5 deletions

diff --git a/src/cflow.rc b/src/cflow.rc
index e4be309..768fae9 100644
--- a/src/cflow.rc
+++ b/src/cflow.rc
@@ -1,14 +1,12 @@
 # Default configuration file for cflow.
 --symbol __inline:=inline
 --symbol __inline__:=inline
---symbol __attribute__:wrapper
 --symbol __const__:=const
 --symbol __const:=const
 --symbol __restrict:=restrict
 --symbol __extension__:qualifier
+--symbol __attribute__:wrapper
 --symbol __asm__:wrapper
 --symbol __nonnull:wrapper
---symbol __nothrow__:wrapper
---symbol __pure__:wrapper
 --symbol __wur:wrapper
            
diff --git a/src/main.c b/src/main.c
index de41689..e81c537 100644
--- a/src/main.c
+++ b/src/main.c
@@ -102,8 +102,8 @@ static struct argp_option options[] = {
        "", GROUP_ID+1 },
      { "pushdown", 'p', N_("NUMBER"), 0,
        N_("Set initial token stack size to NUMBER"), GROUP_ID+1 },
-     { "symbol", 's', N_("SYMBOL:TYPE"), 0,
-       N_("Register SYMBOL with given TYPE. Valid types are: keyword (or kw), modifier, identifier, type, wrapper. Any unambiguous abbreviation of the above is also accepted"), GROUP_ID+1 },
+     { "symbol", 's', N_("SYMBOL:[=]TYPE"), 0,
+       N_("Register SYMBOL with given TYPE, or define an alias (if := is used). Valid types are: keyword (or kw), modifier, qualifier, identifier, type, wrapper. Any unambiguous abbreviation of the above is also accepted"), GROUP_ID+1 },
      { "main", 'm', N_("NAME"), 0,
        N_("Assume main function to be called NAME"), GROUP_ID+1 },
      { "define", 'D', N_("NAME[=DEFN]"), 0,