fix write_book to write lists of strings as lists

1 files changed, 23 insertions, 7 deletions

diff --git a/booki.c b/booki.c
index 4aaea81..95669b8 100644
--- a/booki.c
+++ b/booki.c
@@ -21,7 +21,7 @@ struct es {
 
 struct es default_es = { 0, NULL, NULL };
 
-int concat_es(struct es* str, char* buf) {
+int concat_es_print(struct es* str, char* buf) {
     int size = sprintf(buf, "%.*s", str->len, str->ptr);
     struct es* next = str;
     while ((next = next->next) != NULL)
@@ -29,6 +29,19 @@ int concat_es(struct es* str, char* buf) {
     return size;
 }
 
+int concat_es_toml(struct es* str, char* buf) {
+    if (str->next == NULL) {
+        return sprintf(buf, "\"%.*s\"\n", str->len, str->ptr);
+    }
+    else {
+        int size = sprintf(buf, "[ \"%.*s\"", str->len, str->ptr);
+        struct es* next = str;
+        while ((next = next->next) != NULL)
+            size += sprintf(buf + size, ", \"%.*s\"", next->len, next->ptr);
+        return size + sprintf(buf + size, " ]\n");
+    }
+}
+
 struct Book {
     int id;
     struct es title;
@@ -404,7 +417,7 @@ struct search_opt parse_search_options(int argc, char* argv[]) {
 
 void print_book(struct Book book, bool all_fields) {
     char str[100];
-    int size = concat_es(&(book.author), str);
+    int size = concat_es_print(&(book.author), str);
     printf("%.*s by %.*s\n", book.title.len, book.title.ptr, size, str);
     if (all_fields) {
         char* esfmt = " - %s: %.*s\n";
@@ -413,11 +426,11 @@ void print_book(struct Book book, bool all_fields) {
             printf(esfmt, "isbn", book.isbn.len, book.isbn.ptr);
         }
         if (book.language.ptr) {
-            size = concat_es(&(book.language), str);
+            size = concat_es_print(&(book.language), str);
             printf(esfmt, "language", size, str);
         }
         if (book.translator.ptr) {
-            size = concat_es(&(book.translator), str);
+            size = concat_es_print(&(book.translator), str);
             printf(esfmt, "translator", size, str);
         }
         if (book.pages) {
@@ -459,7 +472,8 @@ void write_book(struct Book book, FILE *output) {
         fwrite(str, 1, size, output);
     }
     if (book.author.ptr) {
-        size = sprintf(str, "author = \"%.*s\"\n", book.author.len, book.author.ptr);
+        size = sprintf(str, "author = ");
+        size += concat_es_toml(&(book.author), str + size);
         fwrite(str, 1, size, output);
     }
     if (book.pages) {
@@ -471,11 +485,13 @@ void write_book(struct Book book, FILE *output) {
         fwrite(str, 1, size, output);
     }
     if (book.language.ptr) {
-        size = sprintf(str, "language = \"%.*s\"\n", book.language.len, book.language.ptr);
+        size = sprintf(str, "language = ");
+        size += concat_es_toml(&(book.language), str + size);
         fwrite(str, 1, size, output);
     }
     if (book.translator.ptr) {
-        size = sprintf(str, "translator = \"%.*s\"\n", book.translator.len, book.translator.ptr);
+        size = sprintf(str, "translator = ");
+        size += concat_es_toml(&(book.translator), str + size);
         fwrite(str, 1, size, output);
     }