.. index:: blank_grammars(Format) .. _blank_grammars/1:

.. rst-class:: right

object

blank_grammars(Format)

Blank grammars.

| Availability: | logtalk_load(grammars(loader))

| Author: Paulo Moura | Version: 0:3:1 | Date: 2022-10-08

| Compilation flags: | static, context_switching_calls

| Dependencies: | (none)

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: white_space//0 .. _blank_grammars/1::white_space//0:

white_space//0 ^^^^^^^^^^^^^^^^^^

Consumes a single space or tab.

| Compilation flags: | static

| Mode and number of proofs: | white_space - zero_or_one

---

.. index:: white_spaces//0 .. _blank_grammars/1::white_spaces//0:

white_spaces//0 ^^^^^^^^^^^^^^^^^^^

Consumes zero or more spaces and tabs.

| Compilation flags: | static

| Mode and number of proofs: | white_spaces - one

---

.. index:: space//0 .. _blank_grammars/1::space//0:

space//0 ^^^^^^^^^^^^

Consumes a single space.

| Compilation flags: | static

| Mode and number of proofs: | space - zero_or_one

---

.. index:: spaces//0 .. _blank_grammars/1::spaces//0:

spaces//0 ^^^^^^^^^^^^^

Consumes zero or more spaces.

| Compilation flags: | static

| Mode and number of proofs: | spaces - one

---

.. index:: tab//0 .. _blank_grammars/1::tab//0:

tab//0 ^^^^^^^^^^

Consumes a single tab.

| Compilation flags: | static

| Mode and number of proofs: | tab - zero_or_one

---

.. index:: tabs//0 .. _blank_grammars/1::tabs//0:

tabs//0 ^^^^^^^^^^^

Consumes zero or more tabs.

| Compilation flags: | static

| Mode and number of proofs: | tabs - one

---

.. index:: new_line//0 .. _blank_grammars/1::new_line//0:

new_line//0 ^^^^^^^^^^^^^^^

Consumes a single new line.

| Compilation flags: | static

| Mode and number of proofs: | new_line - zero_or_one

---

.. index:: new_lines//0 .. _blank_grammars/1::new_lines//0:

new_lines//0 ^^^^^^^^^^^^^^^^

Consumes zero or more new lines.

| Compilation flags: | static

| Mode and number of proofs: | new_lines - one

---

.. index:: blank//0 .. _blank_grammars/1::blank//0:

blank//0 ^^^^^^^^^^^^

Consumes a single space, tab, vertical tab, line feed, or new line.

| Compilation flags: | static

| Mode and number of proofs: | blank - zero_or_one

---

.. index:: blanks//0 .. _blank_grammars/1::blanks//0:

blanks//0 ^^^^^^^^^^^^^

Consumes zero or more spaces, tabs, vertical tabs, line feeds, or new lines.

| Compilation flags: | static

| Mode and number of proofs: | blanks - one

---

.. index:: non_blank//1 .. _blank_grammars/1::non_blank//1:

non_blank//1 ^^^^^^^^^^^^^^^^

Returns a single non-blank character or character code.

| Compilation flags: | static

| Template: | non_blank(NonBlank) | Mode and number of proofs: | non_blank(-atomic) - zero_or_one

---

.. index:: non_blanks//1 .. _blank_grammars/1::non_blanks//1:

non_blanks//1 ^^^^^^^^^^^^^^^^^

Returns a (possibly empty) list of non-blank characters or character codes.

| Compilation flags: | static

| Template: | non_blanks(NonBlanks) | Mode and number of proofs: | non_blanks(-list(atomic)) - one

---

.. index:: control//0 .. _blank_grammars/1::control//0:

control//0 ^^^^^^^^^^^^^^

Consumes a single control character or character code. Support for the null control character depends on the Prolog backend.

| Compilation flags: | static

| Mode and number of proofs: | control - zero_or_one

---

.. index:: controls//0 .. _blank_grammars/1::controls//0:

controls//0 ^^^^^^^^^^^^^^^

Consumes zero or more control characters or character codes. Support for the null control character depends on the Prolog backend.

| Compilation flags: | static

| Mode and number of proofs: | controls - one

---

Protected predicates

(none)

Private predicates

(none)

Operators

(none)