category

http_text_helpers

Internal shared helpers for ASCII case normalization and HTTP optional whitespace trimming.

Availability:

logtalk_load(http_core(loader))

Author: Paulo Moura

Version: 1:0:0

Date: 2026-06-05

Compilation flags:

static

Uses:

list

Remarks:

(none)

Inherited public predicates:

(none)

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

ows_code/1

Succeeds when the code is HTTP optional whitespace (SP or HTAB).

Compilation flags:

static

Template:

ows_code(Code)

Mode and number of proofs:

ows_code(+integer) - zero_or_one

---

lowercase_ascii_codes/2

Converts uppercase ASCII letter codes in a list to lowercase, leaving all other codes unchanged.

Compilation flags:

static

Template:

lowercase_ascii_codes(Codes,LowercaseCodes)

Mode and number of proofs:

lowercase_ascii_codes(+list(integer),-list(integer)) - one

---

uppercase_ascii_codes/2

Converts lowercase ASCII letter codes in a list to uppercase, leaving all other codes unchanged.

Compilation flags:

static

Template:

uppercase_ascii_codes(Codes,UppercaseCodes)

Mode and number of proofs:

uppercase_ascii_codes(+list(integer),-list(integer)) - one

---

trim_trailing_ows_codes/2

Removes trailing HTTP optional whitespace codes from a list.

Compilation flags:

static

Template:

trim_trailing_ows_codes(Codes,TrimmedCodes)

Mode and number of proofs:

trim_trailing_ows_codes(+list(integer),-list(integer)) - one

---

trim_ows_codes/2

Removes leading and trailing HTTP optional whitespace codes from a list.

Compilation flags:

static

Template:

trim_ows_codes(Codes,TrimmedCodes)

Mode and number of proofs:

trim_ows_codes(+list(integer),-list(integer)) - one

---

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)