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(ns cljcc.util
(:require [clojure.java.shell :refer [sh]]
[clojure.string :as str]
[cljcc.log :as log]
[cljcc.exception :as exc]))
(def ^:private counter "Global integer counter for generating unique identifier names." (atom 0))
(defn create-identifier!
"Returns a unique identifier. Used for generating unique identifier.
Removes : from keywords.
Replaces all - with _ for generating valid assembly names."
([]
(create-identifier! "tmp"))
([identifier]
(let [n @counter
_ (swap! counter inc)]
(-> identifier
(str "." n)
(str/replace #":" "")
(str/replace #"-" "_")))))
(defn reset-counter! []
(reset! counter 0))
(defn make-file-name
([^String filename ^String ext]
(str filename "." ext))
([directory filename ext]
(str directory "/" filename "." ext)))
(defn get-os []
(let [os-name (.toLowerCase (System/getProperty "os.name"))]
(cond
(.contains os-name "mac") :mac
(.contains os-name "linux") :linux
:else :unsupported)))
(defn mac-aarch64? []
(and (= :mac (get-os)) (= (System/getProperty "os.arch") "aarch64")))
(defn handle-sh
"Preprends arch -x86_64 if running under Mac M chips."
[command & args]
(if (mac-aarch64?)
(apply sh "arch" "-x86_64" command args)
(apply sh command args)))
(defn exit
([status msg]
(if (= status 0)
(log/info msg)
(log/error msg))
(System/exit status))
([status msg e]
(log/error (ex-data e))
(exit status msg)))
(defn letter? [^Character ch]
(or (= \_ ch)
(Character/isLetter ch)))
(defn letter-digit? [^Character ch]
(or (= \_ ch)
(Character/isLetterOrDigit ch)))
(defn digit? [^Character ch]
(Character/isDigit ch))
(defn newline? [ch]
(= \newline ch))
(defn whitespace? [^Character ch]
(Character/isWhitespace ch))
(defn- valid-long?
"Validates string to be of form [0-9]+[lL]\b.
Verifies that `l` or `L` occurs only once, and at the end."
[s]
(try
(let [strip-l-or-L (if-let [_ (or (str/ends-with? s "l")
(str/ends-with? s "L"))]
(subs s 0 (dec (count s)))
s)
_ (-> strip-l-or-L
Long/parseLong
Long/toString)]
s)
(catch Exception _e
false)))
(defn read-number
"Returns number and number type tuple.
Checks whether number is valid long. If no, checks if it valid int.
Otherwise error."
[s line col]
(if-let [s (valid-long? s)]
s
(exc/lex-error {:line line
:col col})))
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