اقرأ

Reads input from the active input stream.

Syntax: اقرأ [سطرا]

Category#

io

Related#

• سطرا
• اكتب

Examples#

radix/corpus/lege/lege.fab (canonical · keyword)#

Reads input from the active input stream.

# =============================================================================
# اقرأ — Reads input from the active input stream.
# =============================================================================
#
# What this teaches:
#   • stdin input with `اقرأ` — reads one line from the active input stream
#   • the `↦ تعبير` حوّل — compiling a نص pattern into a تعبير value
#
# Common mistakes:
#   • Not checking is null before using the value — read may return null at end of input.
#
# See also: سطرا, اكتب
# =============================================================================

# اقرأ and تعبير تحويل — I/O read and compiled pattern expressions
#
# ثابت _ pattern ← "\d+" ↦ تعبير   -- compiled تعبير from نص
# ثابت _ input ← اقرأ                  -- stdin line read
#
# GRAMMAR:
#   تحويل :← stringLit '↦' 'تعبير'
#   readExpr :← 'اقرأ'
#
# EXPECTED OUTPUT:
#   Regex pattern diagnostic, then one stdin line (no .expected — interactive).
#
# BACKEND: Rust/Go/roundtrip e2e whitelist — اقرأ not yet lowered for Rust/Go
# (whitelist: اقرأ/lege.fab).

main {
    const تعبير pattern ← "(?i)\d+" ↦ تعبير
    print pattern
    const string ∪ none input ← read
    print input
}