From 3efd22a207d0f330f400d821671a55e3bc5d2041 Mon Sep 17 00:00:00 2001
From: Alex Karle <alex@alexkarle.com>
Date: Thu, 23 Dec 2021 19:55:26 -0500
Subject: [PATCH] Refactor in_link to have its own enum state

It's not really a Block type in the regular sense!
---
 blag.c | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/blag.c b/blag.c
index 8992d79..d092a38 100644
--- a/blag.c
+++ b/blag.c
@@ -18,13 +18,17 @@ enum Block {
     QUOTE,
     LIST,
     LIST_PARSE,
-    LINK_URL_PARSE,
-    LINK_DESC_PARSE,
+};
+
+enum Link {
+    NOL,
+    URL_PARSE,
+    DESC_PARSE,
 };
 
 typedef struct State {
     enum Block in;
-    enum Block in_link;
+    enum Link in_link;
     int hlvl;
     int in_code;
     int in_ital;
@@ -84,7 +88,7 @@ void handle_lf(state *s) {
     }
 
     /* Guard against newlines when in parsing types */
-    if (s->in_link == LINK_URL_PARSE || s->in_link == LINK_DESC_PARSE) {
+    if (s->in_link == URL_PARSE || s->in_link == DESC_PARSE) {
         errx(1, "newline detected while processing link");
     }
 
@@ -111,7 +115,7 @@ int parse() {
     int c;
     state s = {
         .in = NONE,
-        .in_link = NONE,
+        .in_link = NOL,
         .hlvl = 0,
         .in_code = 0,
         .in_ital = 0,
@@ -142,7 +146,7 @@ int parse() {
         }
 
         /* Store links as we go */
-        if (s.in_link == LINK_URL_PARSE && c != ']') {
+        if (s.in_link == URL_PARSE && c != ']') {
             s.lnkbuf[s.lnkidx++] = c;
         }
 
@@ -172,8 +176,8 @@ int parse() {
                 if (s.in == HEADER_PARSE) {
                     printf("<h%d>", s.hlvl);
                     s.in = HEADER;
-                } else if (s.in_link == LINK_URL_PARSE) {
-                    s.in_link = LINK_DESC_PARSE;
+                } else if (s.in_link == URL_PARSE) {
+                    s.in_link = DESC_PARSE;
                     printf("\">");
                 } else if (s.in == LIST_PARSE) {
                     if (!s.listdepth) {
@@ -194,7 +198,7 @@ int parse() {
                 }
                 break;
             case '`':
-                if (s.in_link != LINK_URL_PARSE && s.in != CODE) {
+                if (s.in_link != URL_PARSE && s.in != CODE) {
                     maybe_startp(&s);
                     if (s.in_code) {
                         printf("</code>");
@@ -208,7 +212,7 @@ int parse() {
                 }
                 break;
             case '*':
-                if (!s.in_code && s.in_link != LINK_URL_PARSE && s.in != CODE) {
+                if (!s.in_code && s.in_link != URL_PARSE && s.in != CODE) {
                     maybe_startp(&s);
                     if (s.in_bold) {
                         printf("</strong>");
@@ -222,7 +226,7 @@ int parse() {
                 }
                 break;
             case '_':
-                if (!s.in_code && s.in_link != LINK_URL_PARSE && s.in != CODE) {
+                if (!s.in_code && s.in_link != URL_PARSE && s.in != CODE) {
                     maybe_startp(&s);
                     if (s.in_ital) {
                         printf("</em>");
@@ -247,9 +251,9 @@ int parse() {
                 }
                 break;
             case '[':
-                if (s.in_link == NONE && !s.in_code) {
+                if (s.in_link == NOL && !s.in_code) {
                     maybe_startp(&s);
-                    s.in_link = LINK_URL_PARSE;
+                    s.in_link = URL_PARSE;
                     s.lnkidx = 0;
                     printf("<a href=\"");
                 } else {
@@ -257,13 +261,13 @@ int parse() {
                 }
                 break;
             case ']':
-                if (s.in_link == LINK_URL_PARSE) {
+                if (s.in_link == URL_PARSE) {
                     /* no description */
-                    s.in_link = NONE;
+                    s.in_link = NOL;
                     s.lnkbuf[s.lnkidx] = '\0';
                     printf("\">%s</a>", s.lnkbuf);
-                } else if (s.in_link == LINK_DESC_PARSE) {
-                    s.in_link = NONE;
+                } else if (s.in_link == DESC_PARSE) {
+                    s.in_link = NOL;
                     printf("</a>");
                 } else {
                     putesc(c);
--
libgit2 1.1.1