From: Lukas Krickl <lukas@krickl.dev>
Date: Sat, 11 Nov 2023 18:41:20 +0000 (+0100)
Subject: Added some useful comments for macro expansion
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=e62b2bd8c575b355f35a7478c0ae70f05d122fde;p=ulas%2F.git

Added some useful comments for macro expansion
---

diff --git a/src/ulas.c b/src/ulas.c
index a66ba52..cf1d2fc 100644
--- a/src/ulas.c
+++ b/src/ulas.c
@@ -296,6 +296,8 @@ char *ulas_preprocexpand(struct ulas_preproc *pp, const char *raw_line,
         size_t vallen = strlen(def->value);
         size_t valread = 0;
 
+        // the pointer to tocat will be the variable's value if any
+        // exists
         const char *tocat = NULL;
         size_t tocatlen = 0;
 
@@ -306,6 +308,7 @@ char *ulas_preprocexpand(struct ulas_preproc *pp, const char *raw_line,
           tocat = NULL;
           char numbuf[128];
 
+          // decide what tocat should be
           for (size_t mi = 0; mi < ULAS_MACROPARAMMAX; mi++) {
             const char *name = macro_argname[mi];
             if (pp->macroparam[mi].buf[0] &&