twc/ludus
4
0
Fork 0
Code Issues 32 Pull Requests Packages Projects 8 Releases Wiki Activity

Add datatype tokens

Browse Source
This commit is contained in:
Scott Richmond 2022-07-26 18:25:11 -04:00
parent 72aac19bd7
commit 18e4826960
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/ludus/scanner.clj
View File

@ -195,13 +195,13 @@
(word-char? curr) (recur (advance scanner) (str word curr))
:else (add-error scanner (str "Unexpected " curr " after word " word "."))))))
(defn- add-datatype
(defn- add-data
[char scanner]
(loop [scanner scanner
word (str char)]
(let [curr (current-char scanner)]
(cond
(terminates? curr) (add-token scanner (get reserved-words word ::token/word))
(terminates? curr) (add-token scanner ::token/data)
(word-char? curr) (recur (advance scanner) (str word curr))
:else (add-error scanner (str "Unexpected " curr " after datatype " word "."))))))
@ -312,7 +312,8 @@
(cond
(whitespace? char) scanner ;; for now just skip whitespace characters
(digit? char) (add-number char scanner)
(alpha? char) (add-word char scanner)
(upper? char) (add-data char scanner)
(lower? char) (add-word char scanner)
:else (add-error scanner (str "Unexpected character: " char))))))
(defn- next-token [scanner]
@ -325,3 +326,4 @@
{:tokens (::tokens scanner)
:errors (::errors scanner)})
(recur (-> scanner (scan-token) (next-token))))))